> From: Rafael J. Wysocki <rjw@sisk.pl>
>
> Remove the code that acquires all device semaphores from the suspend
> code path as it causes multiple problems to appear (most notably,
>
http://bugzilla.kernel.org/show_bug.cgi?id=10030) and revert the
> change introduced by commit 4145ed6dc597a9bea5f6ae8c574653b2de10620f
> depending on the code being removed.
>
> Remove pm_sleep_lock()/pm_sleep_unlock() from device_add() to avoid
> the issue reported at
http://bugzilla.kernel.org/show_bug.cgi?id=9874.