diff --git a/[refs] b/[refs]
index 0e6cacf92987..a9aff10c0f79 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 309c68cc17ba1f6f733038562b7469b5340e1a1d
+refs/heads/master: c71d48877e6f3d5e3eb22fcaaa612081bce3d089
diff --git a/trunk/drivers/md/md.c b/trunk/drivers/md/md.c
index 3ca3cfb03a7e..ec802913f977 100644
--- a/trunk/drivers/md/md.c
+++ b/trunk/drivers/md/md.c
@@ -5028,8 +5028,10 @@ static int md_notify_reboot(struct notifier_block *this,
 		printk(KERN_INFO "md: stopping all md devices.\n");
 
 		ITERATE_MDDEV(mddev,tmp)
-			if (mddev_trylock(mddev))
+			if (mddev_trylock(mddev)) {
 				do_md_stop (mddev, 1);
+				mddev_unlock(mddev);
+			}
 		/*
 		 * certain more exotic SCSI devices are known to be
 		 * volatile wrt too early system reboots. While the