The following commit has been merged in the master branch: commit 6a51e09d8b5828698217ac4a04b97de1e5415978 Author: Sven Eckelmann sven@narfation.org Date: Fri Jul 15 17:39:26 2016 +0200
batman-adv: Place kref_get for dat_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/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c index b1cc8bf..059bc23 100644 --- a/net/batman-adv/distributed-arp-table.c +++ b/net/batman-adv/distributed-arp-table.c @@ -343,8 +343,8 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip, ether_addr_copy(dat_entry->mac_addr, mac_addr); dat_entry->last_update = jiffies; kref_init(&dat_entry->refcount); - kref_get(&dat_entry->refcount);
+ kref_get(&dat_entry->refcount); hash_added = batadv_hash_add(bat_priv->dat.hash, batadv_compare_dat, batadv_hash_dat, dat_entry, &dat_entry->hash_entry);