From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 15 Dec 2011 01:05:10 +0000 (+0000)
Subject: tcp_memcontrol: fix reversed if condition
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c48e074c7c75c0de4652ea5f5bf4e74c8cf4e3dd;p=openwrt%2Fstaging%2Fblogic.git

tcp_memcontrol: fix reversed if condition

We should only dereference the pointer if it's valid, not the other way
round.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 171d7b64f803..7fed04f875c1 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -44,7 +44,7 @@ static inline struct tcp_memcontrol *tcp_from_cgproto(struct cg_proto *cg_proto)
 
 static void memcg_tcp_enter_memory_pressure(struct sock *sk)
 {
-	if (!sk->sk_cgrp->memory_pressure)
+	if (sk->sk_cgrp->memory_pressure)
 		*sk->sk_cgrp->memory_pressure = 1;
 }
 EXPORT_SYMBOL(memcg_tcp_enter_memory_pressure);