Merge android-3.18.122 (b1c47827) into msm-3.18

* quic/tmp-b1c47827:
  Linux 3.18.122
  bcache: release dc->writeback_lock properly in bch_writeback_thread()
  getxattr: use correct xattr length
  udlfb: set optimal write delay
  fb: fix lost console when the user unplugs a USB adapter
  pwm: tiehrpwm: Fix disabling of output of PWMs
  ubifs: Fix synced_i_size calculation for xattr inodes
  Revert "UBIFS: Fix potential integer overflow in allocation"
  ubifs: Fix memory leak in lprobs self-check
  userns: move user access out of the mutex
  userns; Correct the comment in map_write
  sys: don't hold uts_sem while accessing userspace memory
  osf_getdomainname(): use copy_to_user()
  mm/tlb: Remove tlb_remove_table() non-concurrent condition
  ARM: tegra: Fix Tegra30 Cardhu PCA954x reset
  pnfs/blocklayout: off by one in bl_map_stripe()
  9p: fix multiple NULL-pointer-dereferences
  uprobes: Use synchronize_rcu() not synchronize_sched()
  kthread, tracing: Don't expose half-written comm when creating kthreads
  tracing/blktrace: Fix to allow setting same value
  tracing: Do not call start/stop() functions when tracing_on does not change
  iio: ad9523: Fix return value for ad952x_store()
  iio: ad9523: Fix displayed phase
  dm cache metadata: save in-core policy_hint_size to on-disk superblock
  net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree()
  net/9p/client.c: version pointer uninitialized
  9p/virtio: fix off-by-one error in sg list bounds check
  powerpc/pseries: Fix endianness while restoring of r3 in MCE handler.
  powerpc/fadump: handle crash memory ranges array index overflow
  spi: davinci: fix a NULL pointer dereference
  arm64/vdso: Fix nsec handling for CLOCK_MONOTONIC_RAW
  Linux 3.18.121
  cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status
  scsi: core: Avoid that SCSI device removal through sysfs triggers a deadlock
  scsi: sysfs: Introduce sysfs_{un,}break_active_protection()
  MIPS: Correct the 64-bit DSP accumulator register size
  kprobes: Make list and blacklist root user read only
  s390/pci: fix out of bounds access during irq setup
  s390/qdio: reset old sbal_state flags
  pinctrl: freescale: off by one in imx1_pinconf_group_dbg_show()
  ASoC: sirf: Fix potential NULL pointer dereference
  udl-kms: fix crash due to uninitialized memory
  udl-kms: handle allocation failure
  udl-kms: change down_interruptible to down
  fuse: Add missed unlock_page() to fuse_readpages_fill()
  fuse: Don't access pipe->buffers without pipe_lock()
  x86/process: Re-export start_thread()
  KVM: arm/arm64: Skip updating PMD entry if no change
  KVM: arm/arm64: Skip updating PTE entry if no change
  arm64: mm: check for upper PAGE_SHIFT bits in pfn_valid()
  ext4: reset error code in ext4_find_entry in fallback
  s390/kvm: fix deadlock when killed by oom
  btrfs: don't leak ret from do_chunk_alloc
  mm/memory.c: check return value of ioremap_prot
  scsi: vmw_pvscsi: Return DID_RESET for status SAM_STAT_COMMAND_TERMINATED
  scsi: fcoe: drop frames in ELS LOGO error path
  drivers: net: lmc: fix case value for target abort error
  arc: fix type warnings in arc/mm/cache.c
  arc: fix build errors in arc/include/asm/delay.h
  enic: handle mtu change for vf properly
  Revert "MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum"
  tools/power turbostat: Read extended processor family from CPUID
  zswap: re-check zswap_is_full() after do zswap_shrink()
  selftests/ftrace: Add snapshot and tracing_on test case
  cachefiles: Wait rather than BUG'ing on "Unexpected object collision"
  cachefiles: Fix refcounting bug in backing-file read monitoring
  fscache: Allow cancelled operations to be enqueued
  net: axienet: Fix double deregister of mdio
  bnx2x: Fix invalid memory access in rss hash config path.
  media: staging: omap4iss: Include asm/cacheflush.h after generic includes
  can: mpc5xxx_can: check of_iomap return before use
  atl1c: reserve min skb headroom
  net: caif: Add a missing rcu_read_unlock() in caif_flow_cb
  tools/power turbostat: fix -S on UP systems
  tools: usb: ffs-test: Fix build on big endian systems
  drm/imx: imx-ldb: check if channel is enabled before printing warning
  drm/imx: imx-ldb: disable LDB on driver bind
  scsi: libiscsi: fix possible NULL pointer dereference in case of TMF
  nl80211: Add a missing break in parse_station_flags
  mac80211: add stations tied to AP_VLANs during hw reconfig
  xfrm: free skb if nlsk pointer is NULL
  xfrm: fix missing dst_release() after policy blocking lbcast and multicast
  Cipso: cipso_v4_optptr enter infinite loop
  sched/sysctl: Check user input value of sysctl_sched_time_avg

USB related changes were ignored as per the feedback
from the USB team.

Change-Id: I99017be8ca7195a36fd68596da41011e6bcaf503
Signed-off-by: Nageswara Reddy Karnati <nkarna@codeaurora.org>