Sebastian Capella f8d5b9e9e5 PM / hibernate: Fix restore hang in freeze_processes()
During restore, pm_notifier chain are called with
PM_RESTORE_PREPARE.  The firmware_class driver handler
fw_pm_notify does not have a handler for this.  As a result,
it keeps a reader on the kmod.c umhelper_sem.  During
freeze_processes, the call to __usermodehelper_disable tries to
take a write lock on this semaphore and hangs waiting.

Signed-off-by: Sebastian Capella <sebastian.capella@linaro.org>
Acked-by: Ming Lei <ming.lei@canonical.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-26 01:13:15 +01:00
..
2014-01-17 01:56:56 +01:00
2014-02-13 10:08:52 +05:30
2010-05-21 09:37:29 -07:00