From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 12 Dec 2007 19:24:19 +0000 (-0800)
Subject: [TIPC]: Fix semaphore handling.
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=98eb5683fb94c458b3c8d121797bc9aa1baf4e7e;p=deliverable%2Flinux.git

[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 6b792265dc06..24ddfd2ca38b 100644
--- 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;