Power Management: use mutexes instead of semaphores
The Power Management code uses semaphores as mutexes. Use the mutex API
instead of the (binary) semaphores.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index fb3d35a..2760f25 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -14,12 +14,12 @@
/*
* Used to synchronize global power management operations.
*/
-extern struct semaphore dpm_sem;
+extern struct mutex dpm_mtx;
/*
* Used to serialize changes to the dpm_* lists.
*/
-extern struct semaphore dpm_list_sem;
+extern struct mutex dpm_list_mtx;
/*
* The PM lists.