diff --git a/[refs] b/[refs]
index a1c1739530b6..b4301192f871 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: baf25731e54d06eb13dc4eda78c6dc7da4ce84e8
+refs/heads/master: ec5d498991e87c74730509508b25c3959192b7e7
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
index cc1f81b50b82..98890807375b 100644
--- a/trunk/kernel/sched.c
+++ b/trunk/kernel/sched.c
@@ -8909,6 +8909,9 @@ static int sched_rt_global_constraints(void)
 	u64 rt_runtime, rt_period;
 	int ret = 0;
 
+	if (sysctl_sched_rt_period <= 0)
+		return -EINVAL;
+
 	rt_period = ktime_to_ns(tg->rt_bandwidth.rt_period);
 	rt_runtime = tg->rt_bandwidth.rt_runtime;
 
@@ -8925,6 +8928,9 @@ static int sched_rt_global_constraints(void)
 	unsigned long flags;
 	int i;
 
+	if (sysctl_sched_rt_period <= 0)
+		return -EINVAL;
+
 	spin_lock_irqsave(&def_rt_bandwidth.rt_runtime_lock, flags);
 	for_each_possible_cpu(i) {
 		struct rt_rq *rt_rq = &cpu_rq(i)->rt;