diff --git a/[refs] b/[refs]
index 89e72b1de00f..22c32fd35084 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: abfd6e58aed4f89fd69b9b17bc4b4527efe3a645
+refs/heads/master: 489832609a1ad7189d11715d8cefb457d90182c5
diff --git a/trunk/kernel/rcutorture.c b/trunk/kernel/rcutorture.c
index aaa7b9f3532a..9900f560f1bd 100644
--- a/trunk/kernel/rcutorture.c
+++ b/trunk/kernel/rcutorture.c
@@ -1502,6 +1502,7 @@ rcu_torture_onoff(void *arg)
 	unsigned long delta;
 	int maxcpu = -1;
 	DEFINE_RCU_RANDOM(rand);
+	int ret;
 	unsigned long starttime;
 
 	VERBOSE_PRINTK_STRING("rcu_torture_onoff task started");
@@ -1522,7 +1523,13 @@ rcu_torture_onoff(void *arg)
 					 torture_type, cpu);
 			starttime = jiffies;
 			n_offline_attempts++;
-			if (cpu_down(cpu) == 0) {
+			ret = cpu_down(cpu);
+			if (ret) {
+				if (verbose)
+					pr_alert("%s" TORTURE_FLAG
+						 "rcu_torture_onoff task: offline %d failed: errno %d\n",
+						 torture_type, cpu, ret);
+			} else {
 				if (verbose)
 					pr_alert("%s" TORTURE_FLAG
 						 "rcu_torture_onoff task: offlined %d\n",