dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
 }
 
+static void __dm9601_set_mac_address(struct usbnet *dev)
+{
+       dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
+}
+
 static int dm9601_set_mac_address(struct net_device *net, void *p)
 {
        struct sockaddr *addr = p;
                return -EINVAL;
 
        memcpy(net->dev_addr, addr->sa_data, net->addr_len);
-       dm_write_async(dev, DM_PHY_ADDR, net->addr_len, net->dev_addr);
+       __dm9601_set_mac_address(dev);
 
        return 0;
 }
         */
        if (is_valid_ether_addr(mac))
                memcpy(dev->net->dev_addr, mac, ETH_ALEN);
+       else
+               __dm9601_set_mac_address(dev);
 
        /* power up phy */
        dm_write_reg(dev, DM_GPR_CTRL, 1);