SCTP: Correctly disable listening when backlog is 0.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index de792122672..33354602ae8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5203,6 +5203,7 @@ SCTP_STATIC int sctp_seqpacket_listen(struct sock *sk, int backlog)
 
                 sctp_unhash_endpoint(ep);
                 sk->sk_state = SCTP_SS_CLOSED;
+                return 0;
         }
 
         /* Return if we are already listening. */
@@ -5250,6 +5251,7 @@ SCTP_STATIC int sctp_stream_listen(struct sock *sk, int backlog)
 
                 sctp_unhash_endpoint(ep);
                 sk->sk_state = SCTP_SS_CLOSED;
+                return 0;
         }
 
         if (sctp_sstate(sk, LISTENING))