net: call dev_alloc_name from register_netdevice

Force dev_alloc_name() to be called from register_netdevice() by
dev_get_valid_name(). That allows to remove multiple explicit
dev_alloc_name() calls.

The possibility to call dev_alloc_name in advance remains.

This also fixes veth creation regresion caused by
84c49d8c3e

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hamradio/bpqether.c

@@ -516,10 +516,6 @@ static int bpq_new_device(struct net_device *edev)
 	memcpy(bpq->dest_addr, bcast_addr, sizeof(bpq_eth_addr));
 	memcpy(bpq->acpt_addr, bcast_addr, sizeof(bpq_eth_addr));
 
-	err = dev_alloc_name(ndev, ndev->name);
-	if (err < 0) 
-		goto error;
-
 	err = register_netdevice(ndev);
 	if (err)
 		goto error;