sctp: Allow bindx_del to accept 0 port

[~andy/linux] / net / sctp / socket.c

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 5c9980ae36bba9320296e848ed6dc26f758d98aa..431b8905c570a4bee3fe241ecb4bb6db5fdc9cba 100644 (file)
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -658,11 +658,15 @@ static int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt)
                        goto err_bindx_rem;
                }
 
-               if (sa_addr->v4.sin_port != htons(bp->port)) {
+               if (sa_addr->v4.sin_port &&
+                   sa_addr->v4.sin_port != htons(bp->port)) {
                        retval = -EINVAL;
                        goto err_bindx_rem;
                }
 
+               if (!sa_addr->v4.sin_port)
+                       sa_addr->v4.sin_port = htons(bp->port);
+
                /* FIXME - There is probably a need to check if sk->sk_saddr and
                 * sk->sk_rcv_addr are currently set to one of the addresses to
                 * be removed. This is something which needs to be looked into