[TIPC]: Fix semaphore handling.

As noted by Kevin, tipc's release() does down_interruptible() and
ignores the return value.  So if signal_pending() we'll end up doing
up() on a non-downed semaphore.  Fix.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 6b79226..24ddfd2 100644 (file)
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -253,7 +253,7 @@ static int release(struct socket *sock)
        dbg("sock_delete: %x\n",tsock);
        if (!tsock)
                return 0;
-       down_interruptible(&tsock->sem);
+       down(&tsock->sem);
        if (!sock->sk) {
                up(&tsock->sem);
                return 0;