Fix ipv4/igmp.c compile with gcc-4 and IP_MULTICAST

Modern versions of gcc do not like case statements at the end of a block
statement: you need at least an empty statement.  Using just a "break;"
is preferred for visual style.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index f70ba622c856..0b4e95f93dad 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -970,6 +970,7 @@ int igmp_rcv(struct sk_buff *skb)
         case IGMP_MTRACE_RESP:
                 break;
         default:
+                break;
         }
 
 drop: