3.16.39-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Sven Eckelmann <[email protected]> commit cbef1e102003edb236c6b2319ab269ccef963731 upstream. The orig_ifinfo reference counter for last_bonding_candidate in batadv_orig_node has to be reduced when an originator node is released. Otherwise the orig_ifinfo is leaked and the reference counter the netdevice is not reduced correctly. Fixes: f3b3d9018975 ("batman-adv: add bonding again") Signed-off-by: Sven Eckelmann <[email protected]> Signed-off-by: Marek Lindner <[email protected]> Signed-off-by: Simon Wunderlich <[email protected]> [bwh: Backported to 3.16: - s/_put/_free_ref/ - Adjust context] Signed-off-by: Ben Hutchings <[email protected]> --- net/batman-adv/originator.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -530,6 +530,7 @@ static void batadv_orig_node_release(str struct batadv_neigh_node *neigh_node; struct batadv_orig_ifinfo *orig_ifinfo; struct batadv_orig_node_vlan *vlan, *vlan_tmp; + struct batadv_orig_ifinfo *last_candidate; spin_lock_bh(&orig_node->neigh_list_lock); @@ -545,8 +546,14 @@ static void batadv_orig_node_release(str hlist_del_rcu(&orig_ifinfo->list); batadv_orig_ifinfo_free_ref(orig_ifinfo); } + + last_candidate = orig_node->last_bonding_candidate; + orig_node->last_bonding_candidate = NULL; spin_unlock_bh(&orig_node->neigh_list_lock); + if (last_candidate) + batadv_orig_ifinfo_free_ref(last_candidate); + spin_lock_bh(&orig_node->vlan_list_lock); list_for_each_entry_safe(vlan, vlan_tmp, &orig_node->vlan_list, list) { list_del_rcu(&vlan->list);
