mac802154: move dev_hold out of ieee802154_if_add

This patch moves the dev_hold call inside of nl-phy ieee802154_add_iface
function. The ieee802154_add_iface is the only one function which use the
ieee802154_if_add function and contains the corresponding dev_put call.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/mac802154/iface.c

@@ -501,7 +501,6 @@ ieee802154_if_add(struct ieee802154_local *local, const char *name,
 	if (err)
 		goto err_free;
 
-	dev_hold(dev); /* we return an incremented device refcount */
 	return dev;
 
 err_free: