PM / Sleep: Replace mutex_[un]lock(&pm_mutex) with [un]lock_system_sleep()
authorSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Wed, 7 Dec 2011 21:29:54 +0000 (22:29 +0100)
committerRafael J. Wysocki <rjw@sisk.pl>
Thu, 8 Dec 2011 22:22:29 +0000 (23:22 +0100)
commitbcda53faf5814c0c6025a0bd47108adfcbe9f199
treea8768204a16b24436f33fac00c1bb4dcfb4fafd5
parent9b6fc5dc879bc90f765db0e95eefcf123d0d06dd
PM / Sleep: Replace mutex_[un]lock(&pm_mutex) with [un]lock_system_sleep()

Using [un]lock_system_sleep() is safer than directly using mutex_[un]lock()
on 'pm_mutex', since the latter could lead to freezing failures. Hence convert
all the present users of mutex_[un]lock(&pm_mutex) to use these safe APIs
instead.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
kernel/kexec.c
kernel/power/hibernate.c
kernel/power/main.c
kernel/power/suspend.c
kernel/power/user.c