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/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c
index 1d9aed6..d508482 100644
--- a/drivers/net/wireless/hostap/hostap_main.c
+++ b/drivers/net/wireless/hostap/hostap_main.c
@@ -79,13 +79,8 @@
 	if (!rtnl_locked)
 		rtnl_lock();
 
-	ret = 0;
-	if (strchr(dev->name, '%'))
-		ret = dev_alloc_name(dev, dev->name);
-
 	SET_NETDEV_DEV(dev, mdev->dev.parent);
-	if (ret >= 0)
-		ret = register_netdevice(dev);
+	ret = register_netdevice(dev);
 
 	if (!rtnl_locked)
 		rtnl_unlock();