[NETFILTER]: Don't use conntrack entry after dropping the reference

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c
index d058ac4..91fe8f2 100644
--- a/net/ipv4/netfilter/ip_conntrack_netlink.c
+++ b/net/ipv4/netfilter/ip_conntrack_netlink.c
@@ -728,11 +728,9 @@
 			return -ENOENT;
 		}
 	}	
-	if (del_timer(&ct->timeout)) {
-		ip_conntrack_put(ct);
+	if (del_timer(&ct->timeout))
 		ct->timeout.function((unsigned long)ct);
-		return 0;
-	}
+
 	ip_conntrack_put(ct);
 	DEBUGP("leaving\n");