diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index e34e142b6dbb5beb33068cc3a79f71415d4f6258..5ad4cae1beb2726aced6cf2e69d3b51701126234 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1658,8 +1658,6 @@ static void cfq_service_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
 	cfqq->service_tree = st;
 	p = &st->rb.rb_node;
 	while (*p) {
-		struct rb_node **n;
-
 		parent = *p;
 		__cfqq = rb_entry(parent, struct cfq_queue, rb_node);
 
@@ -1667,13 +1665,11 @@ static void cfq_service_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
 		 * sort by key, that represents service time.
 		 */
 		if (time_before(rb_key, __cfqq->rb_key))
-			n = &(*p)->rb_left;
+			p = &parent->rb_left;
 		else {
-			n = &(*p)->rb_right;
+			p = &parent->rb_right;
 			left = 0;
 		}
-
-		p = n;
 	}
 
 	if (left)