The following commit has been merged in the master branch: commit f257b99becf5183c721a3e0e41ad9b9fbbddbd44 Author: Sven Eckelmann sven@narfation.org Date: Fri Jul 15 17:39:17 2016 +0200
batman-adv: Place kref_get for orig_ifinfo 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/originator.c b/net/batman-adv/originator.c index 5108af1..8828964 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -386,6 +386,7 @@ batadv_orig_ifinfo_new(struct batadv_orig_node *orig_node, orig_ifinfo->if_outgoing = if_outgoing; INIT_HLIST_NODE(&orig_ifinfo->list); kref_init(&orig_ifinfo->refcount); + kref_get(&orig_ifinfo->refcount); hlist_add_head_rcu(&orig_ifinfo->list, &orig_node->ifinfo_list);