batman-adv: Rename batadv_hardif *_free_ref function to *_put

The batman-adv source code is the only place in the kernel which uses the
*_free_ref naming scheme for the *_put functions. Changing it to *_put
makes it more consistent and makes it easier to understand the connection
to the *_get functions.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 261309e..c9cafc0 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -246,7 +246,7 @@
 	ret = true;
 out:
 	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
+		batadv_hardif_put(primary_if);
 	return ret;
 }
 
@@ -409,9 +409,9 @@
 {
 	kfree_skb(forw_packet->skb);
 	if (forw_packet->if_incoming)
-		batadv_hardif_free_ref(forw_packet->if_incoming);
+		batadv_hardif_put(forw_packet->if_incoming);
 	if (forw_packet->if_outgoing)
-		batadv_hardif_free_ref(forw_packet->if_outgoing);
+		batadv_hardif_put(forw_packet->if_outgoing);
 	kfree(forw_packet);
 }
 
@@ -497,7 +497,7 @@
 	atomic_inc(&bat_priv->bcast_queue_left);
 out:
 	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
+		batadv_hardif_put(primary_if);
 	return NETDEV_TX_BUSY;
 }