mcast: do not check 'rv' twice in a row

With the loop, don't check 'rv' twice in a row. Without the loop, 'rv'
doesn't even need to be checked.

Make the comment more grammar-friendly.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 4 deletions

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 8460a1f54a76..e5de48551864 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -427,11 +427,9 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
         rv = 1; /* > 0 for insert logic below if sl_count is 0 */
         for (i=0; i<psl->sl_count; i++) {
                 rv = !ipv6_addr_equal(&psl->sl_addr[i], source);
-                if (rv == 0)
-                        break;
+                if (rv == 0) /* There is an error in the address. */
+                        goto done;
         }
-        if (rv == 0)            /* address already there is an error */
-                goto done;
         for (j=psl->sl_count-1; j>=i; j--)
                 psl->sl_addr[j+1] = psl->sl_addr[j];
         psl->sl_addr[i] = *source;