From: Marek Lindner <mareklindner@neomailbox.ch>
Date: Sat, 25 Jul 2015 20:37:15 +0000 (+0800)
Subject: batman-adv: move hardif refcount inc to batadv_neigh_node_new()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=f729dc70dafec281e524f51ae496a72ea4f8e319;p=openwrt%2Fstaging%2Fblogic.git

batman-adv: move hardif refcount inc to batadv_neigh_node_new()

The batadv_neigh_node cleanup function 'batadv_neigh_node_free_rcu()'
takes care of reducing the hardif refcounter, hence it's only logical
to assume the creating function of that same object
'batadv_neigh_node_new()' takes care of increasing the same refcounter.

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 5c122000688f..b9b8b333b363 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -303,12 +303,6 @@ batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
 	if (!neigh_node)
 		goto out;
 
-	if (!atomic_inc_not_zero(&hard_iface->refcount)) {
-		kfree(neigh_node);
-		neigh_node = NULL;
-		goto out;
-	}
-
 	neigh_node->orig_node = orig_neigh;
 	neigh_node->if_incoming = hard_iface;
 
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 610620aa8d26..f8317c1db427 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -461,6 +461,12 @@ batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
 	if (!neigh_node)
 		goto out;
 
+	if (!atomic_inc_not_zero(&hard_iface->refcount)) {
+		kfree(neigh_node);
+		neigh_node = NULL;
+		goto out;
+	}
+
 	INIT_HLIST_NODE(&neigh_node->list);
 	INIT_HLIST_HEAD(&neigh_node->ifinfo_list);
 	spin_lock_init(&neigh_node->ifinfo_lock);