sched: use list_for_each_entry_safe() in __wake_up_common()

Use list_for_each_entry_safe() instead of list_for_each_safe() in
__wake_up_common()

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

kernel/sched.c

@@ -3634,10 +3634,9 @@ EXPORT_SYMBOL(default_wake_function);
 static void __wake_up_common(wait_queue_head_t *q, unsigned int mode,
 			     int nr_exclusive, int sync, void *key)
 {
-	struct list_head *tmp, *next;
+	wait_queue_t *curr, *next;
 
-	list_for_each_safe(tmp, next, &q->task_list) {
-		wait_queue_t *curr = list_entry(tmp, wait_queue_t, task_list);
+	list_for_each_entry_safe(curr, next, &q->task_list, task_list) {
 		unsigned flags = curr->flags;
 
 		if (curr->func(curr, mode, sync, key) &&