af_iucv: consider state IUCV_CLOSING when closing a socket

Make sure a second invocation of iucv_sock_close() guarantees proper
freeing of an iucv path.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 49e786535dc8..2941ee50393b 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -172,6 +172,7 @@ static void iucv_sock_close(struct sock *sk)
                         err = iucv_sock_wait_state(sk, IUCV_CLOSED, 0, timeo);
                 }
 
+        case IUCV_CLOSING:   /* fall through */
                 sk->sk_state = IUCV_CLOSED;
                 sk->sk_state_change(sk);
 
@@ -224,6 +225,8 @@ static struct sock *iucv_sock_alloc(struct socket *sock, int proto, gfp_t prio)
         spin_lock_init(&iucv_sk(sk)->message_q.lock);
         skb_queue_head_init(&iucv_sk(sk)->backlog_skb_q);
         iucv_sk(sk)->send_tag = 0;
+        iucv_sk(sk)->path = NULL;
+        memset(&iucv_sk(sk)->src_user_id , 0, 32);
 
         sk->sk_destruct = iucv_sock_destruct;
         sk->sk_sndtimeo = IUCV_CONN_TIMEOUT;