X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=kernel%2Fmutex-debug.c;h=d17436cdea1b39a7cb0efc96801bf0655dcb8fb5;hb=a5494dcd8b92dce64317f2f7dd0d62747c54980b;hp=18651641a7b5aa6482e0aa73ce03b5133e6ffa91;hpb=0bd2af46839ad6262d25714a6ec0365db9d6b98f;p=firefly-linux-kernel-4.4.55.git

diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index 18651641a7b5..d17436cdea1b 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -13,7 +13,6 @@
  *  Released under the General Public License (GPL).
  */
 #include <linux/mutex.h>
-#include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/poison.h>
@@ -77,6 +76,9 @@ void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
 
 void debug_mutex_unlock(struct mutex *lock)
 {
+	if (unlikely(!debug_locks))
+		return;
+
 	DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
 	DEBUG_LOCKS_WARN_ON(lock->magic != lock);
 	DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);