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authorSven Eckelmann <sven@narfation.org>2016-07-15 15:39:31 (GMT)
committerSimon Wunderlich <sw@simonwunderlich.de>2016-08-09 05:54:52 (GMT)
commitf489eab5b16b8a2ed8d63b6a725cc31e0c1d6c1a (patch)
treef318cbc0319393f1b859e4940593e8576ee0e9ce /net
parentda7a26af4ae7192e63103aaaf0941a1fd42723df (diff)
downloadlinux-f489eab5b16b8a2ed8d63b6a725cc31e0c1d6c1a.tar.xz
batman-adv: Place kref_get for nc_path 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')
-rw-r--r--net/batman-adv/network-coding.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 4f4cfe5..165cd27 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -978,7 +978,6 @@ static struct batadv_nc_path *batadv_nc_get_path(struct batadv_priv *bat_priv,
INIT_LIST_HEAD(&nc_path->packet_list);
spin_lock_init(&nc_path->packet_list_lock);
kref_init(&nc_path->refcount);
- kref_get(&nc_path->refcount);
nc_path->last_valid = jiffies;
ether_addr_copy(nc_path->next_hop, dst);
ether_addr_copy(nc_path->prev_hop, src);
@@ -988,6 +987,7 @@ static struct batadv_nc_path *batadv_nc_get_path(struct batadv_priv *bat_priv,
nc_path->next_hop);
/* Add nc_path to hash table */
+ kref_get(&nc_path->refcount);
hash_added = batadv_hash_add(hash, batadv_nc_hash_compare,
batadv_nc_hash_choose, &nc_path_key,
&nc_path->hash_entry);