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@gmail.com>
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
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 @@
 {
 	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;