From: Alexander Usyskin <alexander.usyskin@intel.com>
pm_runtime_autosuspend can take synchronous or asynchronous paths,
Because we are calling pm_runtime_mark_last_busy just before this most of
the cases it takes the asynchronous way. However, when the FW or driver
resets during already running runtime suspend, the call will result in calling to
the driver's rpm callback and results in a deadlock on device_lock.
The simplest fix is to replace pm_runtime_autosuspend with asynchronous
pm_request_autosuspend.
Cc: <redacted> # 4.4+
Looks like git send-email is not able to parse this address correctly though this is suggested format by Documentation/stable_kernel_rules.txt.
Create wrong address If git parsers is used : 'stable@vger.kernel.org#4.4+'
Something like s/#.*$// is needed before parsing Cc:
Thanks
Tomas