diff --git a/[refs] b/[refs]
index 7f1c6c5247c6..71710db2127b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 946bf5ee3c46f73b5cbd52aab594697b1a132d1f
+refs/heads/master: 6b0d6a9b4296fa16a28d10d416db7a770fc03287
diff --git a/trunk/net/bridge/br_multicast.c b/trunk/net/bridge/br_multicast.c
index f701a21acb34..fdbd41c76ec4 100644
--- a/trunk/net/bridge/br_multicast.c
+++ b/trunk/net/bridge/br_multicast.c
@@ -719,7 +719,8 @@ static int br_multicast_add_group(struct net_bridge *br,
 		goto err;
 
 	if (!port) {
-		hlist_add_head(&mp->mglist, &br->mglist);
+		if (hlist_unhashed(&mp->mglist))
+			hlist_add_head(&mp->mglist, &br->mglist);
 		mod_timer(&mp->timer, now + br->multicast_membership_interval);
 		goto out;
 	}