bridge: check return value of ipv6_dev_get_saddr()
[linux-2.6.git] / net / bridge / br_multicast.c
index 568d5bf..702a1ae 100644 (file)
@@ -446,8 +446,11 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
        ip6h->nexthdr = IPPROTO_HOPOPTS;
        ip6h->hop_limit = 1;
        ipv6_addr_set(&ip6h->daddr, htonl(0xff020000), 0, 0, htonl(1));
-       ipv6_dev_get_saddr(dev_net(br->dev), br->dev, &ip6h->daddr, 0,
-                          &ip6h->saddr);
+       if (ipv6_dev_get_saddr(dev_net(br->dev), br->dev, &ip6h->daddr, 0,
+                              &ip6h->saddr)) {
+               kfree_skb(skb);
+               return NULL;
+       }
        ipv6_eth_mc_map(&ip6h->daddr, eth->h_dest);
 
        hopopt = (u8 *)(ip6h + 1);