linux-kernel - [PATCH 3.8 09/91] ipv6: fix warning in xfrm6_mode_tunnel

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Date:	Thu,  7 Nov 2013 18:14:24 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Stephen Hemminger <stephen@...workplumber.org>,
	"David S. Miller" <davem@...emloft.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.8 09/91] ipv6: fix warning in xfrm6_mode_tunnel_input

3.8.13.13 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: stephen hemminger <stephen@...workplumber.org>

commit 0d4bfa297c3f7efb71367449ee44f9d3fb0f5871 upstream.

Should not use assignment in conditional:
 warning: suggest parentheses around assignment used as truth value [-Wparentheses]

Problem introduced by:
commit 14bbd6a565e1bcdc240d44687edb93f721cfdf99
Author: Pravin B Shelar <pshelar@...ira.com>
Date:   Thu Feb 14 09:44:49 2013 +0000

    net: Add skb_unclone() helper function.

Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 net/ipv6/xfrm6_mode_tunnel.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 93c41a8..9bf6a74 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -69,7 +69,8 @@ static int xfrm6_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 	if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
 		goto out;
 
-	if (err = skb_unclone(skb, GFP_ATOMIC))
+	err = skb_unclone(skb, GFP_ATOMIC);
+	if (err)
 		goto out;
 
 	if (x->props.flags & XFRM_STATE_DECAP_DSCP)
-- 
1.8.1.2

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