Subject: [patch -next] tcp_memcontrol: fix reversed if condition

From: Dan Carpenter <[email-masked]>
Date: Thu, 15 Dec 2011 14:05:10 +0300

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

Signed-off-by: Dan Carpenter <[email-masked]>

diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 171d7b6..7fed04f 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);