Merge android-4.4.183 (94fd428) into msm-4.4

* refs/heads/tmp-94fd428
  Linux 4.4.183
  Abort file_remove_privs() for non-reg. files
  coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
  Revert "crypto: crypto4xx - properly set IV after de- and encrypt"
  scsi: libsas: delete sas port if expander discover failed
  scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route()
  net: sh_eth: fix mdio access in sh_eth_close() for R-Car Gen2 and RZ/A1 SoCs
  KVM: PPC: Book3S: Use new mutex to synchronize access to rtas token list
  ia64: fix build errors by exporting paddr_to_nid()
  configfs: Fix use-after-free when accessing sd->s_dentry
  i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr
  net: tulip: de4x5: Drop redundant MODULE_DEVICE_TABLE()
  gpio: fix gpio-adp5588 build errors
  perf/ring_buffer: Add ordering to rb->nest increment
  perf/ring_buffer: Fix exposing a temporarily decreased data_head
  x86/CPU/AMD: Don't force the CPB cap when running under a hypervisor
  mISDN: make sure device name is NUL terminated
  sunhv: Fix device naming inconsistency between sunhv_console and sunhv_reg
  neigh: fix use-after-free read in pneigh_get_next
  lapb: fixed leak of control-blocks.
  ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero
  be2net: Fix number of Rx queues used for flow hashing
  ax25: fix inconsistent lock state in ax25_destroy_timer
  USB: serial: option: add Telit 0x1260 and 0x1261 compositions
  USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
  USB: serial: pl2303: add Allied Telesis VT-Kit3
  USB: usb-storage: Add new ID to ums-realtek
  USB: Fix chipmunk-like voice when using Logitech C270 for recording audio.
  drm/vmwgfx: NULL pointer dereference from vmw_cmd_dx_view_define()
  drm/vmwgfx: integer underflow in vmw_cmd_dx_set_shader() leading to an invalid read
  KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION
  KVM: x86/pmu: do not mask the value that is written to fixed PMUs
  usbnet: ipheth: fix racing condition
  scsi: bnx2fc: fix incorrect cast to u64 on shift operation
  scsi: lpfc: add check for loss of ndlp when sending RRQ
  Drivers: misc: fix out-of-bounds access in function param_set_kgdbts_var
  ASoC: cs42xx8: Add regcache mask dirty
  cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css()
  bcache: fix stack corruption by PRECEDING_KEY()
  i2c: acorn: fix i2c warning
  ptrace: restore smp_rmb() in __ptrace_may_access()
  signal/ptrace: Don't leak unitialized kernel memory with PTRACE_PEEK_SIGINFO
  fs/ocfs2: fix race in ocfs2_dentry_attach_lock()
  mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
  libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
  ALSA: seq: Cover unsubscribe_port() in list_mutex
  Revert "Bluetooth: Align minimum encryption key size for LE and BR/EDR connections"
  futex: Fix futex lock the wrong page
  ARM: exynos: Fix undefined instruction during Exynos5422 resume
  pwm: Fix deadlock warning when removing PWM device
  ARM: dts: exynos: Always enable necessary APIO_1V8 and ABB_1V8 regulators on Arndale Octa
  pwm: tiehrpwm: Update shadow register for disabling PWMs
  dmaengine: idma64: Use actual device for DMA transfers
  gpio: gpio-omap: add check for off wake capable gpios
  PCI: xilinx: Check for __get_free_pages() failure
  video: imsttfb: fix potential NULL pointer dereferences
  video: hgafb: fix potential NULL pointer dereference
  PCI: rcar: Fix a potential NULL pointer dereference
  PCI: rpadlpar: Fix leaked device_node references in add/remove paths
  ARM: dts: imx6qdl: Specify IMX6QDL_CLK_IPG as "ipg" clock to SDMA
  ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ipg" clock to SDMA
  ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ahb" clock to SDMA
  clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288
  soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher
  platform/chrome: cros_ec_proto: check for NULL transfer function
  x86/PCI: Fix PCI IRQ routing table memory leak
  nfsd: allow fh_want_write to be called twice
  fuse: retrieve: cap requested size to negotiated max_write
  nvmem: core: fix read buffer in place
  ALSA: hda - Register irq handler after the chip initialization
  iommu/vt-d: Set intel_iommu_gfx_mapped correctly
  f2fs: fix to do sanity check on valid block count of segment
  f2fs: fix to avoid panic in do_recover_data()
  ntp: Allow TAI-UTC offset to be set to zero
  drm/bridge: adv7511: Fix low refresh rate selection
  perf/x86/intel: Allow PEBS multi-entry in watermark mode
  mfd: twl6040: Fix device init errors for ACCCTL register
  mfd: intel-lpss: Set the device in reset state when init
  kernel/sys.c: prctl: fix false positive in validate_prctl_map()
  mm/cma_debug.c: fix the break condition in cma_maxchunk_get()
  mm/cma.c: fix crash on CMA allocation if bitmap allocation fails
  hugetlbfs: on restore reserve error path retain subpool reservation
  ipc: prevent lockup on alloc_msg and free_msg
  sysctl: return -EINVAL if val violates minmax
  fs/fat/file.c: issue flush after the writeback of FAT
  ANDROID: kernel: cgroup: cpuset: Clear cpus_requested for empty buf
  ANDROID: kernel: cgroup: cpuset: Add missing allocation of cpus_requested in alloc_trial_cpuset

Change-Id: I5b33449bd21ec21d91b1030d53df3658a305bded
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

3 files changed, 8 insertions, 18 deletions

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index ec84ff8ad1b4..6911f9662300 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -284,10 +284,12 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip,
 	if (IS_ENABLED(CONFIG_OF))
 		of_pwmchip_add(chip);
 
-	pwmchip_sysfs_export(chip);
-
 out:
 	mutex_unlock(&pwm_lock);
+
+	if (!ret)
+		pwmchip_sysfs_export(chip);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(pwmchip_add_with_polarity);
@@ -321,7 +323,7 @@ int pwmchip_remove(struct pwm_chip *chip)
 	unsigned int i;
 	int ret = 0;
 
-	pwmchip_sysfs_unexport_children(chip);
+	pwmchip_sysfs_unexport(chip);
 
 	mutex_lock(&pwm_lock);
 
@@ -341,8 +343,6 @@ int pwmchip_remove(struct pwm_chip *chip)
 
 	free_pwms(chip);
 
-	pwmchip_sysfs_unexport(chip);
-
 out:
 	mutex_unlock(&pwm_lock);
 	return ret;
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 062dff1c902d..ede17f89d57f 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -385,6 +385,8 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 	}
 
 	/* Update shadow register first before modifying active register */
+	ehrpwm_modify(pc->mmio_base, AQSFRC, AQSFRC_RLDCSF_MASK,
+		      AQSFRC_RLDCSF_ZRO);
 	ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val);
 	/*
 	 * Changes to immediate action on Action Qualifier. This puts
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index 375008e2be20..199370e41da9 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -340,19 +340,6 @@ void pwmchip_sysfs_export(struct pwm_chip *chip)
 void pwmchip_sysfs_unexport(struct pwm_chip *chip)
 {
 	struct device *parent;
-
-	parent = class_find_device(&pwm_class, NULL, chip,
-				   pwmchip_sysfs_match);
-	if (parent) {
-		/* for class_find_device() */
-		put_device(parent);
-		device_unregister(parent);
-	}
-}
-
-void pwmchip_sysfs_unexport_children(struct pwm_chip *chip)
-{
-	struct device *parent;
 	unsigned int i;
 
 	parent = class_find_device(&pwm_class, NULL, chip,
@@ -368,6 +355,7 @@ void pwmchip_sysfs_unexport_children(struct pwm_chip *chip)
 	}
 
 	put_device(parent);
+	device_unregister(parent);
 }
 
 static int __init pwm_sysfs_init(void)