The following commit has been merged in the master branch: commit e3387b266cf68b497be5824e02b074d76244e2ec Author: Sven Eckelmann sven@narfation.org Date: Fri Jul 15 17:39:22 2016 +0200

batman-adv: Place kref_get for tt_local_entry near use

It is hard to understand why the refcnt is increased when it isn't done near the actual place the new reference is used. So using kref_get right before the place which requires the reference and in the same function helps to avoid accidental problems caused by incorrect reference counting.

Signed-off-by: Sven Eckelmann sven@narfation.org Signed-off-by: Marek Lindner mareklindner@neomailbox.ch Signed-off-by: Simon Wunderlich sw@simonwunderlich.de

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 5cc500f..094da1a 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -734,7 +734,6 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr, if (batadv_is_wifi_netdev(in_dev)) tt_local->common.flags |= BATADV_TT_CLIENT_WIFI; kref_init(&tt_local->common.refcount); - kref_get(&tt_local->common.refcount); tt_local->last_seen = jiffies; tt_local->common.added_at = tt_local->last_seen; tt_local->vlan = vlan; @@ -746,6 +745,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr, is_multicast_ether_addr(addr)) tt_local->common.flags |= BATADV_TT_CLIENT_NOPURGE;

+ kref_get(&tt_local->common.refcount); hash_added = batadv_hash_add(bat_priv->tt.local_hash, batadv_compare_tt, batadv_choose_tt, &tt_local->common, &tt_local->common.hash_entry);