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authorSven Eckelmann <sven@narfation.org>2016-07-15 17:39:18 +0200
committerSimon Wunderlich <sw@simonwunderlich.de>2016-08-09 07:54:45 +0200
commit23f554855911f788474b52ff3b7af656b5b61239 (patch)
tree00785ba06594e632de8a93ce494781b968b36fe3 /net/batman-adv/translation-table.c
parentf257b99becf5183c721a3e0e41ad9b9fbbddbd44 (diff)
downloadlinux-23f554855911f788474b52ff3b7af656b5b61239.tar.bz2
batman-adv: Place kref_get for tt_orig_list_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>
Diffstat (limited to 'net/batman-adv/translation-table.c')
-rw-r--r--net/batman-adv/translation-table.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 20804078293c..5cc500fb8ddc 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1567,9 +1567,9 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
orig_entry->orig_node = orig_node;
orig_entry->ttvn = ttvn;
kref_init(&orig_entry->refcount);
- kref_get(&orig_entry->refcount);
spin_lock_bh(&tt_global->list_lock);
+ kref_get(&orig_entry->refcount);
hlist_add_head_rcu(&orig_entry->list,
&tt_global->orig_list);
spin_unlock_bh(&tt_global->list_lock);