diff --git a/[refs] b/[refs]
index 56d9161fd27b..8491c4afc47a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c2ab7ac225e29006b7117d6a9fe8f3be8d98b0c2
+refs/heads/master: e46b66bc42b6b1430b04cc5c207ecb2b2f4553dc
diff --git a/trunk/net/core/dev.c b/trunk/net/core/dev.c
index 4addaf0df96e..a1607bc0cd4c 100644
--- a/trunk/net/core/dev.c
+++ b/trunk/net/core/dev.c
@@ -994,6 +994,8 @@ int dev_open(struct net_device *dev)
 {
 	int ret = 0;
 
+	ASSERT_RTNL();
+
 	/*
 	 *	Is it already up?
 	 */
@@ -1060,6 +1062,8 @@ int dev_open(struct net_device *dev)
  */
 int dev_close(struct net_device *dev)
 {
+	ASSERT_RTNL();
+
 	might_sleep();
 
 	if (!(dev->flags & IFF_UP))