Merge tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here is the big char/misc driver update for 4.6-rc1.

  The majority of the patches here is hwtracing and some new mic
  drivers, but there's a lot of other driver updates as well.  Full
  details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (238 commits)
  goldfish: Fix build error of missing ioremap on UM
  nvmem: mediatek: Fix later provider initialization
  nvmem: imx-ocotp: Fix return value of imx_ocotp_read
  nvmem: Fix dependencies for !HAS_IOMEM archs
  char: genrtc: replace blacklist with whitelist
  drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
  drivers: char: mem: fix IS_ERROR_VALUE usage
  char: xillybus: Fix internal data structure initialization
  pch_phub: return -ENODATA if ROM can't be mapped
  Drivers: hv: vmbus: Support kexec on ws2012 r2 and above
  Drivers: hv: vmbus: Support handling messages on multiple CPUs
  Drivers: hv: utils: Remove util transport handler from list if registration fails
  Drivers: hv: util: Pass the channel information during the init call
  Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload()
  Drivers: hv: vmbus: remove code duplication in message handling
  Drivers: hv: vmbus: avoid wait_for_completion() on crash
  Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messages
  misc: at24: replace memory_accessor with nvmem_device_read
  eeprom: 93xx46: extend driver to plug into the NVMEM framework
  eeprom: at25: extend driver to plug into the NVMEM framework
  ...

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/misc/mic/cosm/cosm_main.c b/drivers/misc/mic/cosm/cosm_main.c
index 4b4b356c797d..7005cb1e01d2 100644
--- a/drivers/misc/mic/cosm/cosm_main.c
+++ b/drivers/misc/mic/cosm/cosm_main.c
@@ -153,8 +153,10 @@ void cosm_stop(struct cosm_device *cdev, bool force)
 		 * stop(..) calls device_unregister and will crash the system if
 		 * called multiple times.
 		 */
-		bool call_hw_ops = cdev->state != MIC_RESET_FAILED &&
-					cdev->state != MIC_READY;
+		u8 state = cdev->state == MIC_RESETTING ?
+					cdev->prev_state : cdev->state;
+		bool call_hw_ops = state != MIC_RESET_FAILED &&
+					state != MIC_READY;
 
 		if (cdev->state != MIC_RESETTING)
 			cosm_set_state(cdev, MIC_RESETTING);
@@ -195,8 +197,11 @@ int cosm_reset(struct cosm_device *cdev)
 
 	mutex_lock(&cdev->cosm_mutex);
 	if (cdev->state != MIC_READY) {
-		cosm_set_state(cdev, MIC_RESETTING);
-		schedule_work(&cdev->reset_trigger_work);
+		if (cdev->state != MIC_RESETTING) {
+			cdev->prev_state = cdev->state;
+			cosm_set_state(cdev, MIC_RESETTING);
+			schedule_work(&cdev->reset_trigger_work);
+		}
 	} else {
 		dev_err(&cdev->dev, "%s %d MIC is READY\n", __func__, __LINE__);
 		rc = -EINVAL;