bridge br_multicast: Fix handling of Max Response Code in IGMPv3 message.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 398221e..19618f2 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -852,8 +852,8 @@
 		if (ih3->nsrcs)
 			goto out;
 
-		max_delay = ih3->code ? 1 :
-			    IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE);
+		max_delay = ih3->code ?
+			    IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1;
 	}
 
 	if (!group)