[gentoo-commits] proj/linux-patches:4.19 commit in: /

[Mike Pagano]

commit:     30268acb55bf8f38da63af8427c716ff98501ff2
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Apr 27 12:03:15 2022 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Apr 27 12:03:15 2022 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=30268acb

Linux patch 4.19.240

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README               |    4 +
 1239_linux-4.19.240.patch | 1623 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1627 insertions(+)

diff --git a/0000_README b/0000_README
index 24846e7c..72dcbc8d 100644
--- a/0000_README
+++ b/0000_README
@@ -995,6 +995,10 @@ Patch:  1238_linux-4.19.239.patch
 From:   https://www.kernel.org
 Desc:   Linux 4.19.239
 
+Patch:  1239_linux-4.19.240.patch
+From:   https://www.kernel.org
+Desc:   Linux 4.19.240
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1239_linux-4.19.240.patch b/1239_linux-4.19.240.patch
new file mode 100644
index 00000000..b3c17320
--- /dev/null
+++ b/1239_linux-4.19.240.patch
@@ -0,0 +1,1623 @@
+diff --git a/Makefile b/Makefile
+index 932bae9fbbbba..546e52f8a05fa 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 19
+-SUBLEVEL = 239
++SUBLEVEL = 240
+ EXTRAVERSION =
+ NAME = "People's Front"
+ 
+diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
+index 37ad245cf9899..fb458623f3860 100644
+--- a/arch/arc/kernel/entry.S
++++ b/arch/arc/kernel/entry.S
+@@ -191,6 +191,7 @@ tracesys_exit:
+ 	st  r0, [sp, PT_r0]     ; sys call return value in pt_regs
+ 
+ 	;POST Sys Call Ptrace Hook
++	mov r0, sp		; pt_regs needed
+ 	bl  @syscall_trace_exit
+ 	b   ret_from_exception ; NOT ret_from_system_call at is saves r0 which
+ 	; we'd done before calling post hook above
+diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
+index 55bbbc3b328f0..e65c04be86ccb 100644
+--- a/arch/arm/mach-vexpress/spc.c
++++ b/arch/arm/mach-vexpress/spc.c
+@@ -580,7 +580,7 @@ static int __init ve_spc_clk_init(void)
+ 		}
+ 
+ 		cluster = topology_physical_package_id(cpu_dev->id);
+-		if (init_opp_table[cluster])
++		if (cluster < 0 || init_opp_table[cluster])
+ 			continue;
+ 
+ 		if (ve_init_opp_table(cpu_dev))
+diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
+index c07b1615ee39d..1aa083db77f18 100644
+--- a/arch/powerpc/perf/power9-pmu.c
++++ b/arch/powerpc/perf/power9-pmu.c
+@@ -143,11 +143,11 @@ int p9_dd22_bl_ev[] = {
+ 
+ /* Table of alternatives, sorted by column 0 */
+ static const unsigned int power9_event_alternatives[][MAX_ALT] = {
+-	{ PM_INST_DISP,			PM_INST_DISP_ALT },
+-	{ PM_RUN_CYC_ALT,		PM_RUN_CYC },
+-	{ PM_RUN_INST_CMPL_ALT,		PM_RUN_INST_CMPL },
+-	{ PM_LD_MISS_L1,		PM_LD_MISS_L1_ALT },
+ 	{ PM_BR_2PATH,			PM_BR_2PATH_ALT },
++	{ PM_INST_DISP,			PM_INST_DISP_ALT },
++	{ PM_RUN_CYC_ALT,               PM_RUN_CYC },
++	{ PM_LD_MISS_L1,                PM_LD_MISS_L1_ALT },
++	{ PM_RUN_INST_CMPL_ALT,         PM_RUN_INST_CMPL },
+ };
+ 
+ static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[])
+diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
+index fb97cf7c41371..1def972b6ca36 100644
+--- a/arch/x86/include/asm/compat.h
++++ b/arch/x86/include/asm/compat.h
+@@ -46,15 +46,13 @@ typedef u64 __attribute__((aligned(4))) compat_u64;
+ typedef u32		compat_uptr_t;
+ 
+ struct compat_stat {
+-	compat_dev_t	st_dev;
+-	u16		__pad1;
++	u32		st_dev;
+ 	compat_ino_t	st_ino;
+ 	compat_mode_t	st_mode;
+ 	compat_nlink_t	st_nlink;
+ 	__compat_uid_t	st_uid;
+ 	__compat_gid_t	st_gid;
+-	compat_dev_t	st_rdev;
+-	u16		__pad2;
++	u32		st_rdev;
+ 	u32		st_size;
+ 	u32		st_blksize;
+ 	u32		st_blocks;
+diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
+index 6490b2759bcb4..9ef62d42ba5b2 100644
+--- a/block/compat_ioctl.c
++++ b/block/compat_ioctl.c
+@@ -391,7 +391,7 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+ 		return 0;
+ 	case BLKGETSIZE:
+ 		size = i_size_read(bdev->bd_inode);
+-		if ((size >> 9) > ~0UL)
++		if ((size >> 9) > ~(compat_ulong_t)0)
+ 			return -EFBIG;
+ 		return compat_put_ulong(arg, size >> 9);
+ 
+diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
+index ff468a6fd8ddc..677f582cf3d6c 100644
+--- a/drivers/ata/pata_marvell.c
++++ b/drivers/ata/pata_marvell.c
+@@ -82,6 +82,8 @@ static int marvell_cable_detect(struct ata_port *ap)
+ 	switch(ap->port_no)
+ 	{
+ 	case 0:
++		if (!ap->ioaddr.bmdma_addr)
++			return ATA_CBL_PATA_UNK;
+ 		if (ioread8(ap->ioaddr.bmdma_addr + 1) & 1)
+ 			return ATA_CBL_PATA40;
+ 		return ATA_CBL_PATA80;
+diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
+index 04704c6376baf..d4ba0d9dd17c4 100644
+--- a/drivers/dma/at_xdmac.c
++++ b/drivers/dma/at_xdmac.c
+@@ -1390,7 +1390,7 @@ at_xdmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
+ {
+ 	struct at_xdmac_chan	*atchan = to_at_xdmac_chan(chan);
+ 	struct at_xdmac		*atxdmac = to_at_xdmac(atchan->chan.device);
+-	struct at_xdmac_desc	*desc, *_desc;
++	struct at_xdmac_desc	*desc, *_desc, *iter;
+ 	struct list_head	*descs_list;
+ 	enum dma_status		ret;
+ 	int			residue, retry;
+@@ -1505,11 +1505,13 @@ at_xdmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
+ 	 * microblock.
+ 	 */
+ 	descs_list = &desc->descs_list;
+-	list_for_each_entry_safe(desc, _desc, descs_list, desc_node) {
+-		dwidth = at_xdmac_get_dwidth(desc->lld.mbr_cfg);
+-		residue -= (desc->lld.mbr_ubc & 0xffffff) << dwidth;
+-		if ((desc->lld.mbr_nda & 0xfffffffc) == cur_nda)
++	list_for_each_entry_safe(iter, _desc, descs_list, desc_node) {
++		dwidth = at_xdmac_get_dwidth(iter->lld.mbr_cfg);
++		residue -= (iter->lld.mbr_ubc & 0xffffff) << dwidth;
++		if ((iter->lld.mbr_nda & 0xfffffffc) == cur_nda) {
++			desc = iter;
+ 			break;
++		}
+ 	}
+ 	residue += cur_ubc << dwidth;
+ 
+diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
+index eea89c3b54c1e..709ead443fc5f 100644
+--- a/drivers/dma/imx-sdma.c
++++ b/drivers/dma/imx-sdma.c
+@@ -1771,7 +1771,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
+ 	u32 reg, val, shift, num_map, i;
+ 	int ret = 0;
+ 
+-	if (IS_ERR(np) || IS_ERR(gpr_np))
++	if (IS_ERR(np) || !gpr_np)
+ 		goto out;
+ 
+ 	event_remap = of_find_property(np, propname, NULL);
+@@ -1819,7 +1819,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
+ 	}
+ 
+ out:
+-	if (!IS_ERR(gpr_np))
++	if (gpr_np)
+ 		of_node_put(gpr_np);
+ 
+ 	return ret;
+diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+index 1ddf07514de6d..3d8eaa25bea0f 100644
+--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
++++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+@@ -188,7 +188,10 @@ static void mdp5_plane_reset(struct drm_plane *plane)
+ 		drm_framebuffer_unreference(plane->state->fb);
+ 
+ 	kfree(to_mdp5_plane_state(plane->state));
++	plane->state = NULL;
+ 	mdp5_state = kzalloc(sizeof(*mdp5_state), GFP_KERNEL);
++	if (!mdp5_state)
++		return;
+ 
+ 	/* assign default blend parameters */
+ 	mdp5_state->alpha = 255;
+diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+index 06bd039159738..f57eec47ef6a9 100644
+--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
++++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+@@ -233,7 +233,7 @@ static void rpi_touchscreen_i2c_write(struct rpi_touchscreen *ts,
+ 
+ 	ret = i2c_smbus_write_byte_data(ts->i2c, reg, val);
+ 	if (ret)
+-		dev_err(&ts->dsi->dev, "I2C write failed: %d\n", ret);
++		dev_err(&ts->i2c->dev, "I2C write failed: %d\n", ret);
+ }
+ 
+ static int rpi_touchscreen_write(struct rpi_touchscreen *ts, u16 reg, u32 val)
+@@ -269,7 +269,7 @@ static int rpi_touchscreen_noop(struct drm_panel *panel)
+ 	return 0;
+ }
+ 
+-static int rpi_touchscreen_enable(struct drm_panel *panel)
++static int rpi_touchscreen_prepare(struct drm_panel *panel)
+ {
+ 	struct rpi_touchscreen *ts = panel_to_ts(panel);
+ 	int i;
+@@ -299,6 +299,13 @@ static int rpi_touchscreen_enable(struct drm_panel *panel)
+ 	rpi_touchscreen_write(ts, DSI_STARTDSI, 0x01);
+ 	msleep(100);
+ 
++	return 0;
++}
++
++static int rpi_touchscreen_enable(struct drm_panel *panel)
++{
++	struct rpi_touchscreen *ts = panel_to_ts(panel);
++
+ 	/* Turn on the backlight. */
+ 	rpi_touchscreen_i2c_write(ts, REG_PWM, 255);
+ 
+@@ -353,7 +360,7 @@ static int rpi_touchscreen_get_modes(struct drm_panel *panel)
+ static const struct drm_panel_funcs rpi_touchscreen_funcs = {
+ 	.disable = rpi_touchscreen_disable,
+ 	.unprepare = rpi_touchscreen_noop,
+-	.prepare = rpi_touchscreen_noop,
++	.prepare = rpi_touchscreen_prepare,
+ 	.enable = rpi_touchscreen_enable,
+ 	.get_modes = rpi_touchscreen_get_modes,
+ };
+diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
+index cffd423172726..b0105d53918ab 100644
+--- a/drivers/md/dm-integrity.c
++++ b/drivers/md/dm-integrity.c
+@@ -3504,6 +3504,7 @@ try_smaller_buffer:
+ 	}
+ 
+ 	if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) {
++		size_t recalc_tags_size;
+ 		if (!ic->internal_hash) {
+ 			r = -EINVAL;
+ 			ti->error = "Recalculate is only valid with internal hash";
+@@ -3522,8 +3523,10 @@ try_smaller_buffer:
+ 			r = -ENOMEM;
+ 			goto bad;
+ 		}
+-		ic->recalc_tags = kvmalloc_array(RECALC_SECTORS >> ic->sb->log2_sectors_per_block,
+-						 ic->tag_size, GFP_KERNEL);
++		recalc_tags_size = (RECALC_SECTORS >> ic->sb->log2_sectors_per_block) * ic->tag_size;
++		if (crypto_shash_digestsize(ic->internal_hash) > ic->tag_size)
++			recalc_tags_size += crypto_shash_digestsize(ic->internal_hash) - ic->tag_size;
++		ic->recalc_tags = kvmalloc(recalc_tags_size, GFP_KERNEL);
+ 		if (!ic->recalc_tags) {
+ 			ti->error = "Cannot allocate tags for recalculating";
+ 			r = -ENOMEM;
+diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
+index df99354ec12aa..232f45f722f0c 100644
+--- a/drivers/net/can/usb/usb_8dev.c
++++ b/drivers/net/can/usb/usb_8dev.c
+@@ -681,9 +681,20 @@ static netdev_tx_t usb_8dev_start_xmit(struct sk_buff *skb,
+ 	atomic_inc(&priv->active_tx_urbs);
+ 
+ 	err = usb_submit_urb(urb, GFP_ATOMIC);
+-	if (unlikely(err))
+-		goto failed;
+-	else if (atomic_read(&priv->active_tx_urbs) >= MAX_TX_URBS)
++	if (unlikely(err)) {
++		can_free_echo_skb(netdev, context->echo_index);
++
++		usb_unanchor_urb(urb);
++		usb_free_coherent(priv->udev, size, buf, urb->transfer_dma);
++
++		atomic_dec(&priv->active_tx_urbs);
++
++		if (err == -ENODEV)
++			netif_device_detach(netdev);
++		else
++			netdev_warn(netdev, "failed tx_urb %d\n", err);
++		stats->tx_dropped++;
++	} else if (atomic_read(&priv->active_tx_urbs) >= MAX_TX_URBS)
+ 		/* Slow down tx path */
+ 		netif_stop_queue(netdev);
+ 
+@@ -702,19 +713,6 @@ nofreecontext:
+ 
+ 	return NETDEV_TX_BUSY;
+ 
+-failed:
+-	can_free_echo_skb(netdev, context->echo_index);
+-
+-	usb_unanchor_urb(urb);
+-	usb_free_coherent(priv->udev, size, buf, urb->transfer_dma);
+-
+-	atomic_dec(&priv->active_tx_urbs);
+-
+-	if (err == -ENODEV)
+-		netif_device_detach(netdev);
+-	else
+-		netdev_warn(netdev, "failed tx_urb %d\n", err);
+-
+ nomembuf:
+ 	usb_free_urb(urb);
+ 
+diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
+index 460bb81acf2bf..d8e4842af055b 100644
+--- a/drivers/net/ethernet/cadence/macb_main.c
++++ b/drivers/net/ethernet/cadence/macb_main.c
+@@ -1364,6 +1364,7 @@ static void macb_tx_restart(struct macb_queue *queue)
+ 	unsigned int head = queue->tx_head;
+ 	unsigned int tail = queue->tx_tail;
+ 	struct macb *bp = queue->bp;
++	unsigned int head_idx, tbqp;
+ 
+ 	if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
+ 		queue_writel(queue, ISR, MACB_BIT(TXUBR));
+@@ -1371,6 +1372,13 @@ static void macb_tx_restart(struct macb_queue *queue)
+ 	if (head == tail)
+ 		return;
+ 
++	tbqp = queue_readl(queue, TBQP) / macb_dma_desc_get_size(bp);
++	tbqp = macb_adj_dma_desc_idx(bp, macb_tx_ring_wrap(bp, tbqp));
++	head_idx = macb_adj_dma_desc_idx(bp, macb_tx_ring_wrap(bp, head));
++
++	if (tbqp == head_idx)
++		return;
++
+ 	macb_writel(bp, NCR, macb_readl(bp, NCR) | MACB_BIT(TSTART));
+ }
+ 
+diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
+index 3184c8f7cdd05..6e69bcdf9c402 100644
+--- a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
++++ b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
+@@ -530,11 +530,15 @@ static int dpaa_get_ts_info(struct net_device *net_dev,
+ 	info->phc_index = -1;
+ 
+ 	fman_node = of_get_parent(mac_node);
+-	if (fman_node)
++	if (fman_node) {
+ 		ptp_node = of_parse_phandle(fman_node, "ptimer-handle", 0);
++		of_node_put(fman_node);
++	}
+ 
+-	if (ptp_node)
++	if (ptp_node) {
+ 		ptp_dev = of_find_device_by_node(ptp_node);
++		of_node_put(ptp_node);
++	}
+ 
+ 	if (ptp_dev)
+ 		ptp = platform_get_drvdata(ptp_dev);
+diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
+index fbad77450725a..7ec60fbb4740e 100644
+--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
++++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
+@@ -995,8 +995,8 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
+ {
+ 	u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) |
+ 	    link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND;
+-	u16 max_ltr_enc_d = 0;	/* maximum LTR decoded by platform */
+-	u16 lat_enc_d = 0;	/* latency decoded */
++	u32 max_ltr_enc_d = 0;	/* maximum LTR decoded by platform */
++	u32 lat_enc_d = 0;	/* latency decoded */
+ 	u16 lat_enc = 0;	/* latency encoded */
+ 
+ 	if (link) {
+diff --git a/drivers/net/ethernet/micrel/Kconfig b/drivers/net/ethernet/micrel/Kconfig
+index aa12bace8673e..b7e2f49696b74 100644
+--- a/drivers/net/ethernet/micrel/Kconfig
++++ b/drivers/net/ethernet/micrel/Kconfig
+@@ -45,7 +45,6 @@ config KS8851
+ config KS8851_MLL
+ 	tristate "Micrel KS8851 MLL"
+ 	depends on HAS_IOMEM
+-	depends on PTP_1588_CLOCK_OPTIONAL
+ 	select MII
+ 	---help---
+ 	  This platform driver is for Micrel KS8851 Address/data bus
+diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
+index eacc1e32d5478..1b98a888a168e 100644
+--- a/drivers/net/vxlan.c
++++ b/drivers/net/vxlan.c
+@@ -524,11 +524,11 @@ static int vxlan_fdb_append(struct vxlan_fdb *f,
+ 
+ 	rd = kmalloc(sizeof(*rd), GFP_ATOMIC);
+ 	if (rd == NULL)
+-		return -ENOBUFS;
++		return -ENOMEM;
+ 
+ 	if (dst_cache_init(&rd->dst_cache, GFP_ATOMIC)) {
+ 		kfree(rd);
+-		return -ENOBUFS;
++		return -ENOMEM;
+ 	}
+ 
+ 	rd->remote_ip = *ip;
+diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+index a5195bdb4d9bd..0a96c1071e5b8 100644
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+@@ -560,7 +560,7 @@ enum brcmf_sdio_frmtype {
+ 	BRCMF_SDIO_FT_SUB,
+ };
+ 
+-#define SDIOD_DRVSTR_KEY(chip, pmu)     (((chip) << 16) | (pmu))
++#define SDIOD_DRVSTR_KEY(chip, pmu)     (((unsigned int)(chip) << 16) | (pmu))
+ 
+ /* SDIO Pad drive strength to select value mappings */
+ struct sdiod_drive_str {
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c b/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c
+index 26cfda24ce085..e26947f89299d 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c
++++ b/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c
+@@ -73,7 +73,7 @@ mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+ 	mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9);
+ 
+ 	/* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */
+-	mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf);
++	mt76_rmw_field(dev, 0x15a0c, 0xfU << 28, 0xf);
+ 
+ 	/* RG_SSUSB_CDR_BR_PE1D = 0x3 */
+ 	mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3);
+diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
+index 77995df7fe547..453fdfdc6311e 100644
+--- a/drivers/perf/arm_pmu.c
++++ b/drivers/perf/arm_pmu.c
+@@ -321,6 +321,9 @@ validate_group(struct perf_event *event)
+ 	if (!validate_event(event->pmu, &fake_pmu, leader))
+ 		return -EINVAL;
+ 
++	if (event == leader)
++		return 0;
++
+ 	for_each_sibling_event(sibling, leader) {
+ 		if (!validate_event(event->pmu, &fake_pmu, sibling))
+ 			return -EINVAL;
+@@ -418,12 +421,7 @@ __hw_perf_event_init(struct perf_event *event)
+ 		local64_set(&hwc->period_left, hwc->sample_period);
+ 	}
+ 
+-	if (event->group_leader != event) {
+-		if (validate_group(event) != 0)
+-			return -EINVAL;
+-	}
+-
+-	return 0;
++	return validate_group(event);
+ }
+ 
+ static int armpmu_event_init(struct perf_event *event)
+diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
+index 7b160ee981152..3e66be504a0da 100644
+--- a/drivers/platform/x86/samsung-laptop.c
++++ b/drivers/platform/x86/samsung-laptop.c
+@@ -1125,8 +1125,6 @@ static void kbd_led_set(struct led_classdev *led_cdev,
+ 
+ 	if (value > samsung->kbd_led.max_brightness)
+ 		value = samsung->kbd_led.max_brightness;
+-	else if (value < 0)
+-		value = 0;
+ 
+ 	samsung->kbd_led_wk = value;
+ 	queue_work(samsung->led_workqueue, &samsung->kbd_led_work);
+diff --git a/drivers/reset/tegra/reset-bpmp.c b/drivers/reset/tegra/reset-bpmp.c
+index 5daf2ee1a396b..f9790b60f9964 100644
+--- a/drivers/reset/tegra/reset-bpmp.c
++++ b/drivers/reset/tegra/reset-bpmp.c
+@@ -23,6 +23,7 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
+ 	struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc);
+ 	struct mrq_reset_request request;
+ 	struct tegra_bpmp_message msg;
++	int err;
+ 
+ 	memset(&request, 0, sizeof(request));
+ 	request.cmd = command;
+@@ -33,7 +34,13 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
+ 	msg.tx.data = &request;
+ 	msg.tx.size = sizeof(request);
+ 
+-	return tegra_bpmp_transfer(bpmp, &msg);
++	err = tegra_bpmp_transfer(bpmp, &msg);
++	if (err)
++		return err;
++	if (msg.rx.ret)
++		return -EINVAL;
++
++	return 0;
+ }
+ 
+ static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,
+diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
+index 45c7f829e3872..ad06fe669d98d 100644
+--- a/drivers/staging/android/ion/ion.c
++++ b/drivers/staging/android/ion/ion.c
+@@ -140,6 +140,9 @@ static void *ion_buffer_kmap_get(struct ion_buffer *buffer)
+ 	void *vaddr;
+ 
+ 	if (buffer->kmap_cnt) {
++		if (buffer->kmap_cnt == INT_MAX)
++			return ERR_PTR(-EOVERFLOW);
++
+ 		buffer->kmap_cnt++;
+ 		return buffer->vaddr;
+ 	}
+diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
+index baa1713d66958..52b1524b40cdc 100644
+--- a/fs/cifs/cifsfs.c
++++ b/fs/cifs/cifsfs.c
+@@ -813,7 +813,7 @@ cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+ 	ssize_t rc;
+ 	struct inode *inode = file_inode(iocb->ki_filp);
+ 
+-	if (iocb->ki_filp->f_flags & O_DIRECT)
++	if (iocb->ki_flags & IOCB_DIRECT)
+ 		return cifs_user_readv(iocb, iter);
+ 
+ 	rc = cifs_revalidate_mapping(inode);
+diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
+index 96cf0f57ca950..76c887108df35 100644
+--- a/fs/ext4/inode.c
++++ b/fs/ext4/inode.c
+@@ -4314,7 +4314,8 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
+ 	struct super_block *sb = inode->i_sb;
+ 	ext4_lblk_t first_block, stop_block;
+ 	struct address_space *mapping = inode->i_mapping;
+-	loff_t first_block_offset, last_block_offset;
++	loff_t first_block_offset, last_block_offset, max_length;
++	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ 	handle_t *handle;
+ 	unsigned int credits;
+ 	int ret = 0;
+@@ -4360,6 +4361,14 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
+ 		   offset;
+ 	}
+ 
++	/*
++	 * For punch hole the length + offset needs to be within one block
++	 * before last range. Adjust the length if it goes beyond that limit.
++	 */
++	max_length = sbi->s_bitmap_maxbytes - inode->i_sb->s_blocksize;
++	if (offset + length > max_length)
++		length = max_length - offset;
++
+ 	if (offset & (sb->s_blocksize - 1) ||
+ 	    (offset + length) & (sb->s_blocksize - 1)) {
+ 		/*
+diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
+index 9cc79b7b0df11..3de933354a08b 100644
+--- a/fs/ext4/page-io.c
++++ b/fs/ext4/page-io.c
+@@ -105,8 +105,10 @@ static void ext4_finish_bio(struct bio *bio)
+ 				continue;
+ 			}
+ 			clear_buffer_async_write(bh);
+-			if (bio->bi_status)
++			if (bio->bi_status) {
++				set_buffer_write_io_error(bh);
+ 				buffer_io_error(bh);
++			}
+ 		} while ((bh = bh->b_this_page) != head);
+ 		bit_spin_unlock(BH_Uptodate_Lock, &head->b_state);
+ 		local_irq_restore(flags);
+diff --git a/fs/ext4/super.c b/fs/ext4/super.c
+index 648eb6a24e3a3..6893b87c73547 100644
+--- a/fs/ext4/super.c
++++ b/fs/ext4/super.c
+@@ -3440,9 +3440,11 @@ static int count_overhead(struct super_block *sb, ext4_group_t grp,
+ 	ext4_fsblk_t		first_block, last_block, b;
+ 	ext4_group_t		i, ngroups = ext4_get_groups_count(sb);
+ 	int			s, j, count = 0;
++	int			has_super = ext4_bg_has_super(sb, grp);
+ 
+ 	if (!ext4_has_feature_bigalloc(sb))
+-		return (ext4_bg_has_super(sb, grp) + ext4_bg_num_gdb(sb, grp) +
++		return (has_super + ext4_bg_num_gdb(sb, grp) +
++			(has_super ? le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0) +
+ 			sbi->s_itb_per_group + 2);
+ 
+ 	first_block = le32_to_cpu(sbi->s_es->s_first_data_block) +
+@@ -4421,9 +4423,18 @@ no_journal:
+ 	 * Get the # of file system overhead blocks from the
+ 	 * superblock if present.
+ 	 */
+-	if (es->s_overhead_clusters)
+-		sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);
+-	else {
++	sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);
++	/* ignore the precalculated value if it is ridiculous */
++	if (sbi->s_overhead > ext4_blocks_count(es))
++		sbi->s_overhead = 0;
++	/*
++	 * If the bigalloc feature is not enabled recalculating the
++	 * overhead doesn't take long, so we might as well just redo
++	 * it to make sure we are using the correct value.
++	 */
++	if (!ext4_has_feature_bigalloc(sb))
++		sbi->s_overhead = 0;
++	if (sbi->s_overhead == 0) {
+ 		err = ext4_calculate_overhead(sb);
+ 		if (err)
+ 			goto failed_mount_wq;
+diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
+index 29dcf0973b73f..cd2d8d6744678 100644
+--- a/fs/gfs2/rgrp.c
++++ b/fs/gfs2/rgrp.c
+@@ -926,15 +926,15 @@ static int read_rindex_entry(struct gfs2_inode *ip)
+ 	rgd->rd_bitbytes = be32_to_cpu(buf.ri_bitbytes);
+ 	spin_lock_init(&rgd->rd_rsspin);
+ 
+-	error = compute_bitstructs(rgd);
+-	if (error)
+-		goto fail;
+-
+ 	error = gfs2_glock_get(sdp, rgd->rd_addr,
+ 			       &gfs2_rgrp_glops, CREATE, &rgd->rd_gl);
+ 	if (error)
+ 		goto fail;
+ 
++	error = compute_bitstructs(rgd);
++	if (error)
++		goto fail_glock;
++
+ 	rgd->rd_rgl = (struct gfs2_rgrp_lvb *)rgd->rd_gl->gl_lksb.sb_lvbptr;
+ 	rgd->rd_flags &= ~(GFS2_RDF_UPTODATE | GFS2_RDF_PREFERRED);
+ 	if (rgd->rd_data > sdp->sd_max_rg_data)
+@@ -951,6 +951,7 @@ static int read_rindex_entry(struct gfs2_inode *ip)
+ 	}
+ 
+ 	error = 0; /* someone else read in the rgrp; free it and ignore it */
++fail_glock:
+ 	gfs2_glock_put(rgd->rd_gl);
+ 
+ fail:
+diff --git a/fs/stat.c b/fs/stat.c
+index f8e6fb2c36576..376543199b5a2 100644
+--- a/fs/stat.c
++++ b/fs/stat.c
+@@ -286,9 +286,6 @@ SYSCALL_DEFINE2(fstat, unsigned int, fd, struct __old_kernel_stat __user *, stat
+ #  define choose_32_64(a,b) b
+ #endif
+ 
+-#define valid_dev(x)  choose_32_64(old_valid_dev(x),true)
+-#define encode_dev(x) choose_32_64(old_encode_dev,new_encode_dev)(x)
+-
+ #ifndef INIT_STRUCT_STAT_PADDING
+ #  define INIT_STRUCT_STAT_PADDING(st) memset(&st, 0, sizeof(st))
+ #endif
+@@ -297,7 +294,9 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
+ {
+ 	struct stat tmp;
+ 
+-	if (!valid_dev(stat->dev) || !valid_dev(stat->rdev))
++	if (sizeof(tmp.st_dev) < 4 && !old_valid_dev(stat->dev))
++		return -EOVERFLOW;
++	if (sizeof(tmp.st_rdev) < 4 && !old_valid_dev(stat->rdev))
+ 		return -EOVERFLOW;
+ #if BITS_PER_LONG == 32
+ 	if (stat->size > MAX_NON_LFS)
+@@ -305,7 +304,7 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
+ #endif
+ 
+ 	INIT_STRUCT_STAT_PADDING(tmp);
+-	tmp.st_dev = encode_dev(stat->dev);
++	tmp.st_dev = new_encode_dev(stat->dev);
+ 	tmp.st_ino = stat->ino;
+ 	if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
+ 		return -EOVERFLOW;
+@@ -315,7 +314,7 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
+ 		return -EOVERFLOW;
+ 	SET_UID(tmp.st_uid, from_kuid_munged(current_user_ns(), stat->uid));
+ 	SET_GID(tmp.st_gid, from_kgid_munged(current_user_ns(), stat->gid));
+-	tmp.st_rdev = encode_dev(stat->rdev);
++	tmp.st_rdev = new_encode_dev(stat->rdev);
+ 	tmp.st_size = stat->size;
+ 	tmp.st_atime = stat->atime.tv_sec;
+ 	tmp.st_mtime = stat->mtime.tv_sec;
+@@ -588,11 +587,13 @@ static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
+ {
+ 	struct compat_stat tmp;
+ 
+-	if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev))
++	if (sizeof(tmp.st_dev) < 4 && !old_valid_dev(stat->dev))
++		return -EOVERFLOW;
++	if (sizeof(tmp.st_rdev) < 4 && !old_valid_dev(stat->rdev))
+ 		return -EOVERFLOW;
+ 
+ 	memset(&tmp, 0, sizeof(tmp));
+-	tmp.st_dev = old_encode_dev(stat->dev);
++	tmp.st_dev = new_encode_dev(stat->dev);
+ 	tmp.st_ino = stat->ino;
+ 	if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
+ 		return -EOVERFLOW;
+@@ -602,7 +603,7 @@ static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
+ 		return -EOVERFLOW;
+ 	SET_UID(tmp.st_uid, from_kuid_munged(current_user_ns(), stat->uid));
+ 	SET_GID(tmp.st_gid, from_kgid_munged(current_user_ns(), stat->gid));
+-	tmp.st_rdev = old_encode_dev(stat->rdev);
++	tmp.st_rdev = new_encode_dev(stat->rdev);
+ 	if ((u64) stat->size > MAX_NON_LFS)
+ 		return -EOVERFLOW;
+ 	tmp.st_size = stat->size;
+diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
+index 572e11bb86967..e1e9eff096d05 100644
+--- a/include/linux/etherdevice.h
++++ b/include/linux/etherdevice.h
+@@ -130,7 +130,7 @@ static inline bool is_multicast_ether_addr(const u8 *addr)
+ #endif
+ }
+ 
+-static inline bool is_multicast_ether_addr_64bits(const u8 addr[6+2])
++static inline bool is_multicast_ether_addr_64bits(const u8 *addr)
+ {
+ #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+ #ifdef __BIG_ENDIAN
+@@ -344,8 +344,7 @@ static inline bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
+  * Please note that alignment of addr1 & addr2 are only guaranteed to be 16 bits.
+  */
+ 
+-static inline bool ether_addr_equal_64bits(const u8 addr1[6+2],
+-					   const u8 addr2[6+2])
++static inline bool ether_addr_equal_64bits(const u8 *addr1, const u8 *addr2)
+ {
+ #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
+ 	u64 fold = (*(const u64 *)addr1) ^ (*(const u64 *)addr2);
+diff --git a/include/net/ax25.h b/include/net/ax25.h
+index 8b7eb46ad72d8..aadff553e4b73 100644
+--- a/include/net/ax25.h
++++ b/include/net/ax25.h
+@@ -236,6 +236,7 @@ typedef struct ax25_dev {
+ #if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER)
+ 	ax25_dama_info		dama;
+ #endif
++	refcount_t		refcount;
+ } ax25_dev;
+ 
+ typedef struct ax25_cb {
+@@ -290,6 +291,17 @@ static __inline__ void ax25_cb_put(ax25_cb *ax25)
+ 	}
+ }
+ 
++static inline void ax25_dev_hold(ax25_dev *ax25_dev)
++{
++	refcount_inc(&ax25_dev->refcount);
++}
++
++static inline void ax25_dev_put(ax25_dev *ax25_dev)
++{
++	if (refcount_dec_and_test(&ax25_dev->refcount)) {
++		kfree(ax25_dev);
++	}
++}
+ static inline __be16 ax25_type_trans(struct sk_buff *skb, struct net_device *dev)
+ {
+ 	skb->dev      = dev;
+diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
+index b875dcef173c9..fa5fe23ca6aaa 100644
+--- a/include/net/inet_hashtables.h
++++ b/include/net/inet_hashtables.h
+@@ -232,8 +232,9 @@ void inet_hashinfo2_init(struct inet_hashinfo *h, const char *name,
+ 			 unsigned long low_limit,
+ 			 unsigned long high_limit);
+ 
+-bool inet_ehash_insert(struct sock *sk, struct sock *osk);
+-bool inet_ehash_nolisten(struct sock *sk, struct sock *osk);
++bool inet_ehash_insert(struct sock *sk, struct sock *osk, bool *found_dup_sk);
++bool inet_ehash_nolisten(struct sock *sk, struct sock *osk,
++			 bool *found_dup_sk);
+ int __inet_hash(struct sock *sk, struct sock *osk);
+ int inet_hash(struct sock *sk);
+ void inet_unhash(struct sock *sk);
+diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
+index 32e573c42a68c..4b0bde304ad79 100644
+--- a/kernel/trace/trace_events_trigger.c
++++ b/kernel/trace/trace_events_trigger.c
+@@ -1212,7 +1212,14 @@ static void
+ stacktrace_trigger(struct event_trigger_data *data, void *rec,
+ 		   struct ring_buffer_event *event)
+ {
+-	trace_dump_stack(STACK_SKIP);
++	struct trace_event_file *file = data->private_data;
++	unsigned long flags;
++
++	if (file) {
++		local_save_flags(flags);
++		__trace_stack(file->tr, flags, STACK_SKIP, preempt_count());
++	} else
++		trace_dump_stack(STACK_SKIP);
+ }
+ 
+ static void
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index f60f7ad5d0ba8..9c35403d96461 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -7117,7 +7117,7 @@ void __init mem_init_print_info(const char *str)
+ 	 */
+ #define adj_init_size(start, end, size, pos, adj) \
+ 	do { \
+-		if (start <= pos && pos < end && size > adj) \
++		if (&start[0] <= &pos[0] && &pos[0] < &end[0] && size > adj) \
+ 			size -= adj; \
+ 	} while (0)
+ 
+diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
+index 3170b43b9f894..7861f2747f843 100644
+--- a/net/ax25/af_ax25.c
++++ b/net/ax25/af_ax25.c
+@@ -92,17 +92,21 @@ again:
+ 			sk = s->sk;
+ 			if (!sk) {
+ 				spin_unlock_bh(&ax25_list_lock);
+-				s->ax25_dev = NULL;
+ 				ax25_disconnect(s, ENETUNREACH);
++				s->ax25_dev = NULL;
+ 				spin_lock_bh(&ax25_list_lock);
+ 				goto again;
+ 			}
+ 			sock_hold(sk);
+ 			spin_unlock_bh(&ax25_list_lock);
+ 			lock_sock(sk);
++			ax25_disconnect(s, ENETUNREACH);
+ 			s->ax25_dev = NULL;
++			if (sk->sk_socket) {
++				dev_put(ax25_dev->dev);
++				ax25_dev_put(ax25_dev);
++			}
+ 			release_sock(sk);
+-			ax25_disconnect(s, ENETUNREACH);
+ 			spin_lock_bh(&ax25_list_lock);
+ 			sock_put(sk);
+ 			/* The entry could have been deleted from the
+@@ -368,21 +372,25 @@ static int ax25_ctl_ioctl(const unsigned int cmd, void __user *arg)
+ 	if (copy_from_user(&ax25_ctl, arg, sizeof(ax25_ctl)))
+ 		return -EFAULT;
+ 
+-	if ((ax25_dev = ax25_addr_ax25dev(&ax25_ctl.port_addr)) == NULL)
+-		return -ENODEV;
+-
+ 	if (ax25_ctl.digi_count > AX25_MAX_DIGIS)
+ 		return -EINVAL;
+ 
+ 	if (ax25_ctl.arg > ULONG_MAX / HZ && ax25_ctl.cmd != AX25_KILL)
+ 		return -EINVAL;
+ 
++	ax25_dev = ax25_addr_ax25dev(&ax25_ctl.port_addr);
++	if (!ax25_dev)
++		return -ENODEV;
++
+ 	digi.ndigi = ax25_ctl.digi_count;
+ 	for (k = 0; k < digi.ndigi; k++)
+ 		digi.calls[k] = ax25_ctl.digi_addr[k];
+ 
+-	if ((ax25 = ax25_find_cb(&ax25_ctl.source_addr, &ax25_ctl.dest_addr, &digi, ax25_dev->dev)) == NULL)
++	ax25 = ax25_find_cb(&ax25_ctl.source_addr, &ax25_ctl.dest_addr, &digi, ax25_dev->dev);
++	if (!ax25) {
++		ax25_dev_put(ax25_dev);
+ 		return -ENOTCONN;
++	}
+ 
+ 	switch (ax25_ctl.cmd) {
+ 	case AX25_KILL:
+@@ -449,6 +457,7 @@ static int ax25_ctl_ioctl(const unsigned int cmd, void __user *arg)
+ 	  }
+ 
+ out_put:
++	ax25_dev_put(ax25_dev);
+ 	ax25_cb_put(ax25);
+ 	return ret;
+ 
+@@ -974,14 +983,16 @@ static int ax25_release(struct socket *sock)
+ {
+ 	struct sock *sk = sock->sk;
+ 	ax25_cb *ax25;
++	ax25_dev *ax25_dev;
+ 
+ 	if (sk == NULL)
+ 		return 0;
+ 
+ 	sock_hold(sk);
+-	sock_orphan(sk);
+ 	lock_sock(sk);
++	sock_orphan(sk);
+ 	ax25 = sk_to_ax25(sk);
++	ax25_dev = ax25->ax25_dev;
+ 
+ 	if (sk->sk_type == SOCK_SEQPACKET) {
+ 		switch (ax25->state) {
+@@ -1043,6 +1054,15 @@ static int ax25_release(struct socket *sock)
+ 		sk->sk_state_change(sk);
+ 		ax25_destroy_socket(ax25);
+ 	}
++	if (ax25_dev) {
++		del_timer_sync(&ax25->timer);
++		del_timer_sync(&ax25->t1timer);
++		del_timer_sync(&ax25->t2timer);
++		del_timer_sync(&ax25->t3timer);
++		del_timer_sync(&ax25->idletimer);
++		dev_put(ax25_dev->dev);
++		ax25_dev_put(ax25_dev);
++	}
+ 
+ 	sock->sk   = NULL;
+ 	release_sock(sk);
+@@ -1119,8 +1139,10 @@ static int ax25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+ 		}
+ 	}
+ 
+-	if (ax25_dev != NULL)
++	if (ax25_dev) {
+ 		ax25_fillin_cb(ax25, ax25_dev);
++		dev_hold(ax25_dev->dev);
++	}
+ 
+ done:
+ 	ax25_cb_add(ax25);
+diff --git a/net/ax25/ax25_dev.c b/net/ax25/ax25_dev.c
+index d92195cd78349..55a611f7239bc 100644
+--- a/net/ax25/ax25_dev.c
++++ b/net/ax25/ax25_dev.c
+@@ -40,6 +40,7 @@ ax25_dev *ax25_addr_ax25dev(ax25_address *addr)
+ 	for (ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next)
+ 		if (ax25cmp(addr, (ax25_address *)ax25_dev->dev->dev_addr) == 0) {
+ 			res = ax25_dev;
++			ax25_dev_hold(ax25_dev);
+ 		}
+ 	spin_unlock_bh(&ax25_dev_lock);
+ 
+@@ -59,6 +60,7 @@ void ax25_dev_device_up(struct net_device *dev)
+ 		return;
+ 	}
+ 
++	refcount_set(&ax25_dev->refcount, 1);
+ 	dev->ax25_ptr     = ax25_dev;
+ 	ax25_dev->dev     = dev;
+ 	dev_hold(dev);
+@@ -87,6 +89,7 @@ void ax25_dev_device_up(struct net_device *dev)
+ 	ax25_dev->next = ax25_dev_list;
+ 	ax25_dev_list  = ax25_dev;
+ 	spin_unlock_bh(&ax25_dev_lock);
++	ax25_dev_hold(ax25_dev);
+ 
+ 	ax25_register_dev_sysctl(ax25_dev);
+ }
+@@ -116,9 +119,10 @@ void ax25_dev_device_down(struct net_device *dev)
+ 	if ((s = ax25_dev_list) == ax25_dev) {
+ 		ax25_dev_list = s->next;
+ 		spin_unlock_bh(&ax25_dev_lock);
++		ax25_dev_put(ax25_dev);
+ 		dev->ax25_ptr = NULL;
+ 		dev_put(dev);
+-		kfree(ax25_dev);
++		ax25_dev_put(ax25_dev);
+ 		return;
+ 	}
+ 
+@@ -126,9 +130,10 @@ void ax25_dev_device_down(struct net_device *dev)
+ 		if (s->next == ax25_dev) {
+ 			s->next = ax25_dev->next;
+ 			spin_unlock_bh(&ax25_dev_lock);
++			ax25_dev_put(ax25_dev);
+ 			dev->ax25_ptr = NULL;
+ 			dev_put(dev);
+-			kfree(ax25_dev);
++			ax25_dev_put(ax25_dev);
+ 			return;
+ 		}
+ 
+@@ -136,6 +141,7 @@ void ax25_dev_device_down(struct net_device *dev)
+ 	}
+ 	spin_unlock_bh(&ax25_dev_lock);
+ 	dev->ax25_ptr = NULL;
++	ax25_dev_put(ax25_dev);
+ }
+ 
+ int ax25_fwd_ioctl(unsigned int cmd, struct ax25_fwd_struct *fwd)
+@@ -147,20 +153,32 @@ int ax25_fwd_ioctl(unsigned int cmd, struct ax25_fwd_struct *fwd)
+ 
+ 	switch (cmd) {
+ 	case SIOCAX25ADDFWD:
+-		if ((fwd_dev = ax25_addr_ax25dev(&fwd->port_to)) == NULL)
++		fwd_dev = ax25_addr_ax25dev(&fwd->port_to);
++		if (!fwd_dev) {
++			ax25_dev_put(ax25_dev);
+ 			return -EINVAL;
+-		if (ax25_dev->forward != NULL)
++		}
++		if (ax25_dev->forward) {
++			ax25_dev_put(fwd_dev);
++			ax25_dev_put(ax25_dev);
+ 			return -EINVAL;
++		}
+ 		ax25_dev->forward = fwd_dev->dev;
++		ax25_dev_put(fwd_dev);
++		ax25_dev_put(ax25_dev);
+ 		break;
+ 
+ 	case SIOCAX25DELFWD:
+-		if (ax25_dev->forward == NULL)
++		if (!ax25_dev->forward) {
++			ax25_dev_put(ax25_dev);
+ 			return -EINVAL;
++		}
+ 		ax25_dev->forward = NULL;
++		ax25_dev_put(ax25_dev);
+ 		break;
+ 
+ 	default:
++		ax25_dev_put(ax25_dev);
+ 		return -EINVAL;
+ 	}
+ 
+diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
+index 66d54fc11831c..8f81de88f0066 100644
+--- a/net/ax25/ax25_route.c
++++ b/net/ax25/ax25_route.c
+@@ -78,11 +78,13 @@ static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
+ 	ax25_dev *ax25_dev;
+ 	int i;
+ 
+-	if ((ax25_dev = ax25_addr_ax25dev(&route->port_addr)) == NULL)
+-		return -EINVAL;
+ 	if (route->digi_count > AX25_MAX_DIGIS)
+ 		return -EINVAL;
+ 
++	ax25_dev = ax25_addr_ax25dev(&route->port_addr);
++	if (!ax25_dev)
++		return -EINVAL;
++
+ 	write_lock_bh(&ax25_route_lock);
+ 
+ 	ax25_rt = ax25_route_list;
+@@ -94,6 +96,7 @@ static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
+ 			if (route->digi_count != 0) {
+ 				if ((ax25_rt->digipeat = kmalloc(sizeof(ax25_digi), GFP_ATOMIC)) == NULL) {
+ 					write_unlock_bh(&ax25_route_lock);
++					ax25_dev_put(ax25_dev);
+ 					return -ENOMEM;
+ 				}
+ 				ax25_rt->digipeat->lastrepeat = -1;
+@@ -104,6 +107,7 @@ static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
+ 				}
+ 			}
+ 			write_unlock_bh(&ax25_route_lock);
++			ax25_dev_put(ax25_dev);
+ 			return 0;
+ 		}
+ 		ax25_rt = ax25_rt->next;
+@@ -111,6 +115,7 @@ static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
+ 
+ 	if ((ax25_rt = kmalloc(sizeof(ax25_route), GFP_ATOMIC)) == NULL) {
+ 		write_unlock_bh(&ax25_route_lock);
++		ax25_dev_put(ax25_dev);
+ 		return -ENOMEM;
+ 	}
+ 
+@@ -123,6 +128,7 @@ static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
+ 		if ((ax25_rt->digipeat = kmalloc(sizeof(ax25_digi), GFP_ATOMIC)) == NULL) {
+ 			write_unlock_bh(&ax25_route_lock);
+ 			kfree(ax25_rt);
++			ax25_dev_put(ax25_dev);
+ 			return -ENOMEM;
+ 		}
+ 		ax25_rt->digipeat->lastrepeat = -1;
+@@ -135,6 +141,7 @@ static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
+ 	ax25_rt->next   = ax25_route_list;
+ 	ax25_route_list = ax25_rt;
+ 	write_unlock_bh(&ax25_route_lock);
++	ax25_dev_put(ax25_dev);
+ 
+ 	return 0;
+ }
+@@ -176,6 +183,7 @@ static int ax25_rt_del(struct ax25_routes_struct *route)
+ 		}
+ 	}
+ 	write_unlock_bh(&ax25_route_lock);
++	ax25_dev_put(ax25_dev);
+ 
+ 	return 0;
+ }
+@@ -218,6 +226,7 @@ static int ax25_rt_opt(struct ax25_route_opt_struct *rt_option)
+ 
+ out:
+ 	write_unlock_bh(&ax25_route_lock);
++	ax25_dev_put(ax25_dev);
+ 	return err;
+ }
+ 
+diff --git a/net/ax25/ax25_subr.c b/net/ax25/ax25_subr.c
+index 038b109b2be70..c129865cad9f4 100644
+--- a/net/ax25/ax25_subr.c
++++ b/net/ax25/ax25_subr.c
+@@ -264,12 +264,20 @@ void ax25_disconnect(ax25_cb *ax25, int reason)
+ {
+ 	ax25_clear_queues(ax25);
+ 
+-	if (!ax25->sk || !sock_flag(ax25->sk, SOCK_DESTROY))
+-		ax25_stop_heartbeat(ax25);
+-	ax25_stop_t1timer(ax25);
+-	ax25_stop_t2timer(ax25);
+-	ax25_stop_t3timer(ax25);
+-	ax25_stop_idletimer(ax25);
++	if (reason == ENETUNREACH) {
++		del_timer_sync(&ax25->timer);
++		del_timer_sync(&ax25->t1timer);
++		del_timer_sync(&ax25->t2timer);
++		del_timer_sync(&ax25->t3timer);
++		del_timer_sync(&ax25->idletimer);
++	} else {
++		if (!ax25->sk || !sock_flag(ax25->sk, SOCK_DESTROY))
++			ax25_stop_heartbeat(ax25);
++		ax25_stop_t1timer(ax25);
++		ax25_stop_t2timer(ax25);
++		ax25_stop_t3timer(ax25);
++		ax25_stop_idletimer(ax25);
++	}
+ 
+ 	ax25->state = AX25_STATE_0;
+ 
+diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
+index 176bddacc16eb..7e93087d13667 100644
+--- a/net/dccp/ipv4.c
++++ b/net/dccp/ipv4.c
+@@ -428,7 +428,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
+ 
+ 	if (__inet_inherit_port(sk, newsk) < 0)
+ 		goto put_and_exit;
+-	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
++	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash), NULL);
+ 	if (*own_req)
+ 		ireq->ireq_opt = NULL;
+ 	else
+diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
+index 2cd3508a37869..ae4851fdbe9e5 100644
+--- a/net/dccp/ipv6.c
++++ b/net/dccp/ipv6.c
+@@ -538,7 +538,7 @@ static struct sock *dccp_v6_request_recv_sock(const struct sock *sk,
+ 		dccp_done(newsk);
+ 		goto out;
+ 	}
+-	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
++	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash), NULL);
+ 	/* Clone pktoptions received with SYN, if we own the req */
+ 	if (*own_req && ireq->pktopts) {
+ 		newnp->pktoptions = skb_clone(ireq->pktopts, GFP_ATOMIC);
+diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
+index 439a55d1aa993..0a69f92da71b8 100644
+--- a/net/ipv4/inet_connection_sock.c
++++ b/net/ipv4/inet_connection_sock.c
+@@ -793,7 +793,7 @@ static void reqsk_queue_hash_req(struct request_sock *req,
+ 	timer_setup(&req->rsk_timer, reqsk_timer_handler, TIMER_PINNED);
+ 	mod_timer(&req->rsk_timer, jiffies + timeout);
+ 
+-	inet_ehash_insert(req_to_sk(req), NULL);
++	inet_ehash_insert(req_to_sk(req), NULL, NULL);
+ 	/* before letting lookups find us, make sure all req fields
+ 	 * are committed to memory and refcnt initialized.
+ 	 */
+diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
+index 3a5f12f011cb4..c96a5871b49da 100644
+--- a/net/ipv4/inet_hashtables.c
++++ b/net/ipv4/inet_hashtables.c
+@@ -24,6 +24,9 @@
+ #include <net/addrconf.h>
+ #include <net/inet_connection_sock.h>
+ #include <net/inet_hashtables.h>
++#if IS_ENABLED(CONFIG_IPV6)
++#include <net/inet6_hashtables.h>
++#endif
+ #include <net/secure_seq.h>
+ #include <net/ip.h>
+ #include <net/tcp.h>
+@@ -513,10 +516,52 @@ static u32 inet_sk_port_offset(const struct sock *sk)
+ 					  inet->inet_dport);
+ }
+ 
+-/* insert a socket into ehash, and eventually remove another one
+- * (The another one can be a SYN_RECV or TIMEWAIT
++/* Searches for an exsiting socket in the ehash bucket list.
++ * Returns true if found, false otherwise.
+  */
+-bool inet_ehash_insert(struct sock *sk, struct sock *osk)
++static bool inet_ehash_lookup_by_sk(struct sock *sk,
++				    struct hlist_nulls_head *list)
++{
++	const __portpair ports = INET_COMBINED_PORTS(sk->sk_dport, sk->sk_num);
++	const int sdif = sk->sk_bound_dev_if;
++	const int dif = sk->sk_bound_dev_if;
++	const struct hlist_nulls_node *node;
++	struct net *net = sock_net(sk);
++	struct sock *esk;
++
++	INET_ADDR_COOKIE(acookie, sk->sk_daddr, sk->sk_rcv_saddr);
++
++	sk_nulls_for_each_rcu(esk, node, list) {
++		if (esk->sk_hash != sk->sk_hash)
++			continue;
++		if (sk->sk_family == AF_INET) {
++			if (unlikely(INET_MATCH(esk, net, acookie,
++						sk->sk_daddr,
++						sk->sk_rcv_saddr,
++						ports, dif, sdif))) {
++				return true;
++			}
++		}
++#if IS_ENABLED(CONFIG_IPV6)
++		else if (sk->sk_family == AF_INET6) {
++			if (unlikely(INET6_MATCH(esk, net,
++						 &sk->sk_v6_daddr,
++						 &sk->sk_v6_rcv_saddr,
++						 ports, dif, sdif))) {
++				return true;
++			}
++		}
++#endif
++	}
++	return false;
++}
++
++/* Insert a socket into ehash, and eventually remove another one
++ * (The another one can be a SYN_RECV or TIMEWAIT)
++ * If an existing socket already exists, socket sk is not inserted,
++ * and sets found_dup_sk parameter to true.
++ */
++bool inet_ehash_insert(struct sock *sk, struct sock *osk, bool *found_dup_sk)
+ {
+ 	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
+ 	struct hlist_nulls_head *list;
+@@ -535,16 +580,23 @@ bool inet_ehash_insert(struct sock *sk, struct sock *osk)
+ 	if (osk) {
+ 		WARN_ON_ONCE(sk->sk_hash != osk->sk_hash);
+ 		ret = sk_nulls_del_node_init_rcu(osk);
++	} else if (found_dup_sk) {
++		*found_dup_sk = inet_ehash_lookup_by_sk(sk, list);
++		if (*found_dup_sk)
++			ret = false;
+ 	}
++
+ 	if (ret)
+ 		__sk_nulls_add_node_rcu(sk, list);
++
+ 	spin_unlock(lock);
++
+ 	return ret;
+ }
+ 
+-bool inet_ehash_nolisten(struct sock *sk, struct sock *osk)
++bool inet_ehash_nolisten(struct sock *sk, struct sock *osk, bool *found_dup_sk)
+ {
+-	bool ok = inet_ehash_insert(sk, osk);
++	bool ok = inet_ehash_insert(sk, osk, found_dup_sk);
+ 
+ 	if (ok) {
+ 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+@@ -588,7 +640,7 @@ int __inet_hash(struct sock *sk, struct sock *osk)
+ 	int err = 0;
+ 
+ 	if (sk->sk_state != TCP_LISTEN) {
+-		inet_ehash_nolisten(sk, osk);
++		inet_ehash_nolisten(sk, osk, NULL);
+ 		return 0;
+ 	}
+ 	WARN_ON(!sk_unhashed(sk));
+@@ -683,7 +735,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
+ 		tb = inet_csk(sk)->icsk_bind_hash;
+ 		spin_lock_bh(&head->lock);
+ 		if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) {
+-			inet_ehash_nolisten(sk, NULL);
++			inet_ehash_nolisten(sk, NULL, NULL);
+ 			spin_unlock_bh(&head->lock);
+ 			return 0;
+ 		}
+@@ -759,7 +811,7 @@ ok:
+ 	inet_bind_hash(sk, tb, port);
+ 	if (sk_unhashed(sk)) {
+ 		inet_sk(sk)->inet_sport = htons(port);
+-		inet_ehash_nolisten(sk, (struct sock *)tw);
++		inet_ehash_nolisten(sk, (struct sock *)tw, NULL);
+ 	}
+ 	if (tw)
+ 		inet_twsk_bind_unhash(tw, hinfo);
+diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
+index de4edfbc9e466..c9fc6e3868be3 100644
+--- a/net/ipv4/tcp_ipv4.c
++++ b/net/ipv4/tcp_ipv4.c
+@@ -1415,6 +1415,7 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
+ 				  bool *own_req)
+ {
+ 	struct inet_request_sock *ireq;
++	bool found_dup_sk = false;
+ 	struct inet_sock *newinet;
+ 	struct tcp_sock *newtp;
+ 	struct sock *newsk;
+@@ -1485,12 +1486,22 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
+ 
+ 	if (__inet_inherit_port(sk, newsk) < 0)
+ 		goto put_and_exit;
+-	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
++	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash),
++				       &found_dup_sk);
+ 	if (likely(*own_req)) {
+ 		tcp_move_syn(newtp, req);
+ 		ireq->ireq_opt = NULL;
+ 	} else {
+ 		newinet->inet_opt = NULL;
++
++		if (!req_unhash && found_dup_sk) {
++			/* This code path should only be executed in the
++			 * syncookie case only
++			 */
++			bh_unlock_sock(newsk);
++			sock_put(newsk);
++			newsk = NULL;
++		}
+ 	}
+ 	return newsk;
+ 
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
+index e8d206725cb75..c332f75f4e9aa 100644
+--- a/net/ipv6/tcp_ipv6.c
++++ b/net/ipv6/tcp_ipv6.c
+@@ -1090,6 +1090,7 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
+ 	struct ipv6_txoptions *opt;
+ 	struct tcp6_sock *newtcp6sk;
+ 	struct inet_sock *newinet;
++	bool found_dup_sk = false;
+ 	struct tcp_sock *newtp;
+ 	struct sock *newsk;
+ #ifdef CONFIG_TCP_MD5SIG
+@@ -1258,7 +1259,8 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
+ 		tcp_done(newsk);
+ 		goto out;
+ 	}
+-	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
++	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash),
++				       &found_dup_sk);
+ 	if (*own_req) {
+ 		tcp_move_syn(newtp, req);
+ 
+@@ -1273,6 +1275,15 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
+ 				skb_set_owner_r(newnp->pktoptions, newsk);
+ 			}
+ 		}
++	} else {
++		if (!req_unhash && found_dup_sk) {
++			/* This code path should only be executed in the
++			 * syncookie case only
++			 */
++			bh_unlock_sock(newsk);
++			sock_put(newsk);
++			newsk = NULL;
++		}
+ 	}
+ 
+ 	return newsk;
+diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
+index 5c6241964637f..e2120221b9578 100644
+--- a/net/netlink/af_netlink.c
++++ b/net/netlink/af_netlink.c
+@@ -2243,6 +2243,13 @@ static int netlink_dump(struct sock *sk)
+ 	 * single netdev. The outcome is MSG_TRUNC error.
+ 	 */
+ 	skb_reserve(skb, skb_tailroom(skb) - alloc_size);
++
++	/* Make sure malicious BPF programs can not read unitialized memory
++	 * from skb->head -> skb->data
++	 */
++	skb_reset_network_header(skb);
++	skb_reset_mac_header(skb);
++
+ 	netlink_skb_set_owner_r(skb, sk);
+ 
+ 	if (nlk->dump_done_errno > 0)
+diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
+index 4413ffdc1e030..180f5feb77177 100644
+--- a/net/openvswitch/flow_netlink.c
++++ b/net/openvswitch/flow_netlink.c
+@@ -2316,7 +2316,7 @@ static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa,
+ 	new_acts_size = max(next_offset + req_size, ksize(*sfa) * 2);
+ 
+ 	if (new_acts_size > MAX_ACTIONS_BUFSIZE) {
+-		if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size) {
++		if ((next_offset + req_size) > MAX_ACTIONS_BUFSIZE) {
+ 			OVS_NLERR(log, "Flow action size exceeds max %u",
+ 				  MAX_ACTIONS_BUFSIZE);
+ 			return ERR_PTR(-EMSGSIZE);
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index b951f411ddedc..f654f79e3310c 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -2791,8 +2791,9 @@ tpacket_error:
+ 
+ 		status = TP_STATUS_SEND_REQUEST;
+ 		err = po->xmit(skb);
+-		if (unlikely(err > 0)) {
+-			err = net_xmit_errno(err);
++		if (unlikely(err != 0)) {
++			if (err > 0)
++				err = net_xmit_errno(err);
+ 			if (err && __packet_get_status(po, ph) ==
+ 				   TP_STATUS_AVAILABLE) {
+ 				/* skb was destructed already */
+@@ -2993,8 +2994,12 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
+ 		skb->no_fcs = 1;
+ 
+ 	err = po->xmit(skb);
+-	if (err > 0 && (err = net_xmit_errno(err)) != 0)
+-		goto out_unlock;
++	if (unlikely(err != 0)) {
++		if (err > 0)
++			err = net_xmit_errno(err);
++		if (err)
++			goto out_unlock;
++	}
+ 
+ 	dev_put(dev);
+ 
+diff --git a/net/rxrpc/net_ns.c b/net/rxrpc/net_ns.c
+index 1b403c2573da2..39579cfcf9b88 100644
+--- a/net/rxrpc/net_ns.c
++++ b/net/rxrpc/net_ns.c
+@@ -117,7 +117,9 @@ static __net_exit void rxrpc_exit_net(struct net *net)
+ 	struct rxrpc_net *rxnet = rxrpc_net(net);
+ 
+ 	rxnet->live = false;
++	del_timer_sync(&rxnet->peer_keepalive_timer);
+ 	cancel_work_sync(&rxnet->peer_keepalive_work);
++	/* Remove the timer again as the worker may have restarted it. */
+ 	del_timer_sync(&rxnet->peer_keepalive_timer);
+ 	rxrpc_destroy_all_calls(rxnet);
+ 	rxrpc_destroy_all_connections(rxnet);
+diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
+index fe246e03fcd9c..5eee26cf9011f 100644
+--- a/net/sched/cls_u32.c
++++ b/net/sched/cls_u32.c
+@@ -873,10 +873,6 @@ static struct tc_u_knode *u32_init_knode(struct tcf_proto *tp,
+ 	new->flags = n->flags;
+ 	RCU_INIT_POINTER(new->ht_down, ht);
+ 
+-	/* bump reference count as long as we hold pointer to structure */
+-	if (ht)
+-		ht->refcnt++;
+-
+ #ifdef CONFIG_CLS_U32_PERF
+ 	/* Statistics may be incremented by readers during update
+ 	 * so we must keep them in tact. When the node is later destroyed
+@@ -899,6 +895,10 @@ static struct tc_u_knode *u32_init_knode(struct tcf_proto *tp,
+ 		return NULL;
+ 	}
+ 
++	/* bump reference count as long as we hold pointer to structure */
++	if (ht)
++		ht->refcnt++;
++
+ 	return new;
+ }
+ 
+diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
+index 5041f43ee5f79..06d32257ddb60 100644
+--- a/sound/soc/atmel/sam9g20_wm8731.c
++++ b/sound/soc/atmel/sam9g20_wm8731.c
+@@ -59,35 +59,6 @@
+  */
+ #undef ENABLE_MIC_INPUT
+ 
+-static struct clk *mclk;
+-
+-static int at91sam9g20ek_set_bias_level(struct snd_soc_card *card,
+-					struct snd_soc_dapm_context *dapm,
+-					enum snd_soc_bias_level level)
+-{
+-	static int mclk_on;
+-	int ret = 0;
+-
+-	switch (level) {
+-	case SND_SOC_BIAS_ON:
+-	case SND_SOC_BIAS_PREPARE:
+-		if (!mclk_on)
+-			ret = clk_enable(mclk);
+-		if (ret == 0)
+-			mclk_on = 1;
+-		break;
+-
+-	case SND_SOC_BIAS_OFF:
+-	case SND_SOC_BIAS_STANDBY:
+-		if (mclk_on)
+-			clk_disable(mclk);
+-		mclk_on = 0;
+-		break;
+-	}
+-
+-	return ret;
+-}
+-
+ static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = {
+ 	SND_SOC_DAPM_MIC("Int Mic", NULL),
+ 	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+@@ -146,7 +117,6 @@ static struct snd_soc_card snd_soc_at91sam9g20ek = {
+ 	.owner = THIS_MODULE,
+ 	.dai_link = &at91sam9g20ek_dai,
+ 	.num_links = 1,
+-	.set_bias_level = at91sam9g20ek_set_bias_level,
+ 
+ 	.dapm_widgets = at91sam9g20ek_dapm_widgets,
+ 	.num_dapm_widgets = ARRAY_SIZE(at91sam9g20ek_dapm_widgets),
+@@ -159,7 +129,6 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
+ {
+ 	struct device_node *np = pdev->dev.of_node;
+ 	struct device_node *codec_np, *cpu_np;
+-	struct clk *pllb;
+ 	struct snd_soc_card *card = &snd_soc_at91sam9g20ek;
+ 	int ret;
+ 
+@@ -173,31 +142,6 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
+ 		return -EINVAL;
+ 	}
+ 
+-	/*
+-	 * Codec MCLK is supplied by PCK0 - set it up.
+-	 */
+-	mclk = clk_get(NULL, "pck0");
+-	if (IS_ERR(mclk)) {
+-		dev_err(&pdev->dev, "Failed to get MCLK\n");
+-		ret = PTR_ERR(mclk);
+-		goto err;
+-	}
+-
+-	pllb = clk_get(NULL, "pllb");
+-	if (IS_ERR(pllb)) {
+-		dev_err(&pdev->dev, "Failed to get PLLB\n");
+-		ret = PTR_ERR(pllb);
+-		goto err_mclk;
+-	}
+-	ret = clk_set_parent(mclk, pllb);
+-	clk_put(pllb);
+-	if (ret != 0) {
+-		dev_err(&pdev->dev, "Failed to set MCLK parent\n");
+-		goto err_mclk;
+-	}
+-
+-	clk_set_rate(mclk, MCLK_RATE);
+-
+ 	card->dev = &pdev->dev;
+ 
+ 	/* Parse device node info */
+@@ -241,9 +185,6 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
+ 
+ 	return ret;
+ 
+-err_mclk:
+-	clk_put(mclk);
+-	mclk = NULL;
+ err:
+ 	atmel_ssc_put_audio(0);
+ 	return ret;
+@@ -253,8 +194,6 @@ static int at91sam9g20ek_audio_remove(struct platform_device *pdev)
+ {
+ 	struct snd_soc_card *card = platform_get_drvdata(pdev);
+ 
+-	clk_disable(mclk);
+-	mclk = NULL;
+ 	snd_soc_unregister_card(card);
+ 	atmel_ssc_put_audio(0);
+ 
+diff --git a/sound/soc/codecs/msm8916-wcd-digital.c b/sound/soc/codecs/msm8916-wcd-digital.c
+index e6750bda542a9..fa813ec321196 100644
+--- a/sound/soc/codecs/msm8916-wcd-digital.c
++++ b/sound/soc/codecs/msm8916-wcd-digital.c
+@@ -923,9 +923,16 @@ static int msm8916_wcd_digital_probe(struct platform_device *pdev)
+ 
+ 	dev_set_drvdata(dev, priv);
+ 
+-	return devm_snd_soc_register_component(dev, &msm8916_wcd_digital,
++	ret = devm_snd_soc_register_component(dev, &msm8916_wcd_digital,
+ 				      msm8916_wcd_digital_dai,
+ 				      ARRAY_SIZE(msm8916_wcd_digital_dai));
++	if (ret)
++		goto err_mclk;
++
++	return 0;
++
++err_mclk:
++	clk_disable_unprepare(priv->mclk);
+ err_clk:
+ 	clk_disable_unprepare(priv->ahbclk);
+ 	return ret;
+diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
+index e04c48c67458a..af9f28dd957db 100644
+--- a/sound/soc/soc-dapm.c
++++ b/sound/soc/soc-dapm.c
+@@ -1635,8 +1635,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
+ 		switch (w->id) {
+ 		case snd_soc_dapm_pre:
+ 			if (!w->event)
+-				list_for_each_entry_safe_continue(w, n, list,
+-								  power_list);
++				continue;
+ 
+ 			if (event == SND_SOC_DAPM_STREAM_START)
+ 				ret = w->event(w,
+@@ -1648,8 +1647,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
+ 
+ 		case snd_soc_dapm_post:
+ 			if (!w->event)
+-				list_for_each_entry_safe_continue(w, n, list,
+-								  power_list);
++				continue;
+ 
+ 			if (event == SND_SOC_DAPM_STREAM_START)
+ 				ret = w->event(w,
+diff --git a/sound/usb/midi.c b/sound/usb/midi.c
+index 1ac8c84c3369a..c9c604f0e1ff7 100644
+--- a/sound/usb/midi.c
++++ b/sound/usb/midi.c
+@@ -1211,6 +1211,7 @@ static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream)
+ 		} while (drain_urbs && timeout);
+ 		finish_wait(&ep->drain_wait, &wait);
+ 	}
++	port->active = 0;
+ 	spin_unlock_irq(&ep->buffer_lock);
+ }
+ 
+diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
+index 0c7ea78317fca..0206fecfd3770 100644
+--- a/sound/usb/usbaudio.h
++++ b/sound/usb/usbaudio.h
+@@ -22,7 +22,7 @@
+  */
+ 
+ /* handling of USB vendor/product ID pairs as 32-bit numbers */
+-#define USB_ID(vendor, product) (((vendor) << 16) | (product))
++#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product))
+ #define USB_ID_VENDOR(id) ((id) >> 16)
+ #define USB_ID_PRODUCT(id) ((u16)(id))
+