netdev - [patch] IPVS: precedence bug in ip_vs_sync_switch

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Message-ID: <20110207083855.GD4384@bicker>
Date:	Mon, 7 Feb 2011 11:38:55 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Wensong Zhang <wensong@...ux-vs.org>
Cc:	Simon Horman <horms@...ge.net.au>, Julian Anastasov <ja@....bg>,
	hans.schillstrom@...csson.com, Patrick McHardy <kaber@...sh.net>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	lvs-devel@...r.kernel.org, netfilter-devel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] IPVS: precedence bug in ip_vs_sync_switch_mode()

'!' has higher precedence than '&'.  IP_VS_STATE_MASTER is 0x1 so
the original code is equivelent to if (!ipvs->sync_state) ...

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 2a2a836..d1b7298 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -392,7 +392,7 @@ void ip_vs_sync_switch_mode(struct net *net, int mode)
 {
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
-	if (!ipvs->sync_state & IP_VS_STATE_MASTER)
+	if (!(ipvs->sync_state & IP_VS_STATE_MASTER))
 		return;
 	if (mode == ipvs->sysctl_sync_ver || !ipvs->sync_buff)
 		return;
--
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