batman-adv: Fix netlink dumping of all mcast_flags buckets

The bucket variable is only updated outside the loop over the mcast_flags buckets. It will only be updated during a dumping run when the dumping has to be interrupted and a new message has to be started.

This could result in repeated or missing entries when the multicast flags are dumped to userspace.

---
 net/batman-adv/multicast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 67d7f830..a3488cfb 100644
@@ -2303,7 +2303,7 @@ __batadv_mcast_flags_dump(struct sk_buff *msg, u32 portid,
 
 	while (bucket_tmp < hash->size) {
 		if (batadv_mcast_flags_dump_bucket(msg, portid, cb, hash,
-						   *bucket, &idx_tmp))
+						   bucket_tmp, &idx_tmp))
 			break;
 
 		bucket_tmp++;

2.20.1