ipv6 mcast: Omit redundant address family checks in ip6_mc_source().

The caller has alredy checked for them.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 1b28537..e7c03bc 100644 (file)
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -367,10 +367,6 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
        int pmclocked = 0;
        int err;
 
-       if (pgsr->gsr_group.ss_family != AF_INET6 ||
-           pgsr->gsr_source.ss_family != AF_INET6)
-               return -EINVAL;
-
        source = &((struct sockaddr_in6 *)&pgsr->gsr_source)->sin6_addr;
        group = &((struct sockaddr_in6 *)&pgsr->gsr_group)->sin6_addr;