clockevent: simplify list operations
list_for_each_safe() suffices here.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 3e59fce..1d327f6 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -218,6 +218,8 @@
*/
void clockevents_notify(unsigned long reason, void *arg)
{
+ struct list_head *node, *tmp;
+
spin_lock(&clockevents_lock);
clockevents_do_notify(reason, arg);
@@ -227,13 +229,8 @@
* Unregister the clock event devices which were
* released from the users in the notify chain.
*/
- while (!list_empty(&clockevents_released)) {
- struct clock_event_device *dev;
-
- dev = list_entry(clockevents_released.next,
- struct clock_event_device, list);
- list_del(&dev->list);
- }
+ list_for_each_safe(node, tmp, &clockevents_released)
+ list_del(node);
break;
default:
break;