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
84c49d8c3e4abefb0a41a77b25aa37ebe8d6b743

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index 0edb535..fc433f2 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -1070,7 +1070,7 @@
 	hdlc_device *hdlc = dev_to_hdlc(frad);
 	pvc_device *pvc;
 	struct net_device *dev;
-	int result, used;
+	int used;
 
 	if ((pvc = add_pvc(frad, dlci)) == NULL) {
 		printk(KERN_WARNING "%s: Memory squeeze on fr_add_pvc()\n",
@@ -1106,13 +1106,6 @@
 	dev->tx_queue_len = 0;
 	dev->ml_priv = pvc;
 
-	result = dev_alloc_name(dev, dev->name);
-	if (result < 0) {
-		free_netdev(dev);
-		delete_unused_pvcs(hdlc);
-		return result;
-	}
-
 	if (register_netdevice(dev) != 0) {
 		free_netdev(dev);
 		delete_unused_pvcs(hdlc);