bridge br_multicast: Fix skb leakage in error path.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 19618f2..6980625 100644 (file)
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -991,7 +991,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 
                err = pskb_trim_rcsum(skb2, len);
                if (err)
-                       return err;
+                       goto err_out;
        }
 
        len -= ip_hdrlen(skb2);
@@ -1013,7 +1013,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
        case CHECKSUM_NONE:
                skb2->csum = 0;
                if (skb_checksum_complete(skb2))
-                       return -EINVAL;
+                       goto out;
        }
 
        err = 0;
@@ -1040,6 +1040,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 
 out:
        __skb_push(skb2, offset);
+err_out:
        if (skb2 != skb)
                kfree_skb(skb2);
        return err;