diff --git a/[refs] b/[refs]
index 3c746719dbb4..1052994c008c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6d299f1b53b84e2665f402d9bcc494800aba6386
+refs/heads/master: d07355f5def74d060333563b36ab51b89fd44cdd
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
index 8a1257b65560..90329f1f8941 100644
--- a/trunk/kernel/sched.c
+++ b/trunk/kernel/sched.c
@@ -3668,6 +3668,7 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle)
 	/* Earliest time when we have to do rebalance again */
 	unsigned long next_balance = jiffies + 60*HZ;
 	int update_next_balance = 0;
+	int need_serialize;
 	cpumask_t tmp;
 
 	for_each_domain(cpu, sd) {
@@ -3685,8 +3686,9 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle)
 		if (interval > HZ*NR_CPUS/10)
 			interval = HZ*NR_CPUS/10;
 
+		need_serialize = sd->flags & SD_SERIALIZE;
 
-		if (sd->flags & SD_SERIALIZE) {
+		if (need_serialize) {
 			if (!spin_trylock(&balancing))
 				goto out;
 		}
@@ -3702,7 +3704,7 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle)
 			}
 			sd->last_balance = jiffies;
 		}
-		if (sd->flags & SD_SERIALIZE)
+		if (need_serialize)
 			spin_unlock(&balancing);
 out:
 		if (time_after(next_balance, sd->last_balance + interval)) {