Repository : ssh://git@open-mesh.org/batman-adv
On branch : master
commit 9ba0625cac1a94e50d1915df544fc85a791e70a6 Author: Sven Eckelmann sven@narfation.org Date: Fri Jul 15 17:39:30 2016 +0200
batman-adv: Place kref_get for nc_node 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 causedy incorrect reference counting.
Signed-off-by: Sven Eckelmann sven@narfation.org Signed-off-by: Marek Lindner mareklindner@neomailbox.ch
9ba0625cac1a94e50d1915df544fc85a791e70a6 net/batman-adv/network-coding.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c index 3814cfb..4f4cfe5 100644 --- a/net/batman-adv/network-coding.c +++ b/net/batman-adv/network-coding.c @@ -859,7 +859,6 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv, /* Initialize nc_node */ INIT_LIST_HEAD(&nc_node->list); kref_init(&nc_node->refcount); - kref_get(&nc_node->refcount); ether_addr_copy(nc_node->addr, orig_node->orig); kref_get(&orig_neigh_node->refcount); nc_node->orig_node = orig_neigh_node; @@ -878,6 +877,7 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
/* Add nc_node to orig_node */ spin_lock_bh(lock); + kref_get(&nc_node->refcount); list_add_tail_rcu(&nc_node->list, list); spin_unlock_bh(lock);