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batman-adv: Place kref_get for orig_ifinfo near use

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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>
This commit is contained in:
Sven Eckelmann 2016-07-15 17:39:17 +02:00 committed by Simon Wunderlich
parent 09537d1869
commit f257b99bec
1 changed files with 1 additions and 0 deletions
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net/batman-adv/originator.c
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@ -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);