wireless: convert to use netdev_for_each_mc_addr

also added missed locking in rndis_wlan.c

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 5d2b52f..6917286 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -875,17 +875,16 @@
 static void zd1201_set_multicast(struct net_device *dev)
 {
 	struct zd1201 *zd = netdev_priv(dev);
-	struct dev_mc_list *mc = dev->mc_list;
+	struct dev_mc_list *mc;
 	unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
 	int i;
 
 	if (netdev_mc_count(dev) > ZD1201_MAXMULTI)
 		return;
 
-	for (i=0; i<netdev_mc_count(dev); i++) {
-		memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
-		mc = mc->next;
-	}
+	i = 0;
+	netdev_for_each_mc_addr(mc, dev)
+		memcpy(reqbuf + i++ * ETH_ALEN, mc->dmi_addr, ETH_ALEN);
 	zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
 			 netdev_mc_count(dev) * ETH_ALEN, 0);
 }