Merge 4.4.226 into android-4.4-p

Changes in 4.4.226
	ax25: fix setsockopt(SO_BINDTODEVICE)
	net: revert "net: get rid of an signed integer overflow in ip_idents_reserve()"
	sctp: Start shutdown on association restart if in SHUTDOWN-SENT state and socket is closed
	net/mlx5: Add command entry handling completion
	net: sun: fix missing release regions in cas_init_one().
	net/mlx4_core: fix a memory leak bug.
	uapi: fix linux/if_pppol2tp.h userspace compilation errors
	IB/cma: Fix reference count leak when no ipv4 addresses are set
	cachefiles: Fix race between read_waiter and read_copier involving op->to_do
	usb: gadget: legacy: fix redundant initialization warnings
	cifs: Fix null pointer check in cifs_read
	Input: usbtouchscreen - add support for BonXeon TP
	Input: evdev - call input_flush_device() on release(), not flush()
	Input: xpad - add custom init packet for Xbox One S controllers
	Input: i8042 - add ThinkPad S230u to i8042 reset list
	IB/qib: Call kobject_put() when kobject_init_and_add() fails
	ALSA: hwdep: fix a left shifting 1 by 31 UB bug
	ALSA: usb-audio: mixer: volume quirk for ESS Technology Asus USB DAC
	exec: Always set cap_ambient in cap_bprm_set_creds
	fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
	include/asm-generic/topology.h: guard cpumask_of_node() macro argument
	iommu: Fix reference count leak in iommu_group_alloc.
	parisc: Fix kernel panic in mem_init()
	x86/dma: Fix max PFN arithmetic overflow on 32 bit systems
	xfrm: allow to accept packets with ipv6 NEXTHDR_HOP in xfrm_input
	xfrm: fix a warning in xfrm_policy_insert_list
	xfrm: fix a NULL-ptr deref in xfrm_local_error
	vti4: eliminated some duplicate code.
	ip_vti: receive ipip packet by calling ip_tunnel_rcv
	netfilter: nft_reject_bridge: enable reject with bridge vlan
	netfilter: ipset: Fix subcounter update skip
	netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code
	qlcnic: fix missing release in qlcnic_83xx_interrupt_test.
	bonding: Fix reference count leak in bond_sysfs_slave_add.
	netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build
	mm: remove VM_BUG_ON(PageSlab()) from page_mapcount()
	drm/fb-helper: Use proper plane mask for fb cleanup
	genirq/generic_pending: Do not lose pending affinity update
	usb: renesas_usbhs: gadget: fix spin_lock_init() for &uep->lock
	mac80211: fix memory leak
	net: rtnl_configure_link: fix dev flags changes arg to __dev_notify_flags
	mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()
	asm-prototypes: Clear any CPP defines before declaring the functions
	sc16is7xx: move label 'err_spi' to correct section
	drm/msm: Fix possible null dereference on failure of get_pages()
	printk: help pr_debug and pr_devel to optimize out arguments
	scsi: zfcp: fix request object use-after-free in send path causing wrong traces
	Linux 4.4.226

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia5473e84bcdec9d8a045a80a1c683fc1072f8c4f

1 files changed, 11 insertions, 9 deletions

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 644faf3ae93a..245070950e87 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -116,17 +116,19 @@ static void put_pages(struct drm_gem_object *obj)
 	struct msm_gem_object *msm_obj = to_msm_bo(obj);
 
 	if (msm_obj->pages) {
-		/* For non-cached buffers, ensure the new pages are clean
-		 * because display controller, GPU, etc. are not coherent:
-		 */
-		if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED))
-			dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl,
-					msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
+		if (msm_obj->sgt) {
+			/* For non-cached buffers, ensure the new
+			 * pages are clean because display controller,
+			 * GPU, etc. are not coherent:
+			 */
+			if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED))
+				dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl,
+					     msm_obj->sgt->nents,
+					     DMA_BIDIRECTIONAL);
 
-		if (msm_obj->sgt)
 			sg_free_table(msm_obj->sgt);
-
-		kfree(msm_obj->sgt);
+			kfree(msm_obj->sgt);
+		}
 
 		if (use_pages(obj))
 			drm_gem_put_pages(obj, msm_obj->pages, true, false);