udp: fix a typo in __udp4_lib_mcast_demux_lookup
At this point sk might contain garbage.Signed-off-by: Eric Dumazet <edumazet@google.com>Signed-off-by: David S. Miller <davem@davemloft.net>
authored by Eric Dumazet and committed by David S. Miller 12 years ago f69b923a efe4208f