From: Gao Feng <fgao@ikuai8.com>
Date: Fri, 19 Aug 2016 05:36:23 +0000 (+0800)
Subject: l2tp: Fix the connect status check in pppol2tp_getname
X-Git-Tag: v4.8-rc5~34^2~46
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=56cff471d0c62b721a298f806e7637501debb513;p=karo-tx-linux.git

l2tp: Fix the connect status check in pppol2tp_getname

The sk->sk_state is bits flag, so need use bit operation check
instead of value check.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Tested-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index d9560aa2dba3..232cb92033e8 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -856,7 +856,7 @@ static int pppol2tp_getname(struct socket *sock, struct sockaddr *uaddr,
 	error = -ENOTCONN;
 	if (sk == NULL)
 		goto end;
-	if (sk->sk_state != PPPOX_CONNECTED)
+	if (!(sk->sk_state & PPPOX_CONNECTED))
 		goto end;
 
 	error = -EBADF;