Fix a bug in ip6_dst_lookup_tail(), where typeof(dst) is
"struct dst_entry **", not "struct dst_entry *"
Reported-by: NFengguang Wu <wfg@linux.intel.com>
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>