From: Sven Eckelmann <s...@narfation.org>
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 <s...@narfation.org>
Signed-off-by: Marek Lindner <mareklind...@neomailbox.ch>
Signed-off-by: Simon Wunderlich <s...@simonwunderlich.de>
---
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 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);
--
2.9.3
