diff --git a/[refs] b/[refs]
index 183a678519f9..f5d629c3d9c3 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2fbe43f6f631dd7ce19fb1499d6164a5bdb34568
+refs/heads/master: ef8aef55ce61fd0e2af798695f7386ac756ae1e7
diff --git a/trunk/net/core/datagram.c b/trunk/net/core/datagram.c
index cb056f476126..029b93e246b4 100644
--- a/trunk/net/core/datagram.c
+++ b/trunk/net/core/datagram.c
@@ -450,6 +450,9 @@ int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
 	__wsum csum;
 	int chunk = skb->len - hlen;
 
+	if (!chunk)
+		return 0;
+
 	/* Skip filled elements.
 	 * Pretty silly, look at memcpy_toiovec, though 8)
 	 */