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| author | Sven Eckelmann <sven@narfation.org> | 2016-07-15 17:39:21 +0200 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2016-08-09 07:54:46 +0200 |
| commit | 55db2d590298e8ffe6ee66134157aa710e45faa2 (patch) | |
| tree | e164cb4d3dea339f07eb8050f6699847b87d0eaa /net/batman-adv/network-coding.c | |
| parent | 8427445886d23729cc41305cef580605202f01db (diff) | |
| download | linux-stable-55db2d590298e8ffe6ee66134157aa710e45faa2.tar.gz linux-stable-55db2d590298e8ffe6ee66134157aa710e45faa2.tar.bz2 linux-stable-55db2d590298e8ffe6ee66134157aa710e45faa2.zip | |
batman-adv: Place kref_get for orig_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 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/network-coding.c')
| -rw-r--r-- | net/batman-adv/network-coding.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c index 293ef4ffd4e1..3814cfb94846 100644 --- a/net/batman-adv/network-coding.c +++ b/net/batman-adv/network-coding.c @@ -856,14 +856,13 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv, if (!nc_node) return NULL; - kref_get(&orig_neigh_node->refcount); - /* Initialize nc_node */ INIT_LIST_HEAD(&nc_node->list); - ether_addr_copy(nc_node->addr, orig_node->orig); - nc_node->orig_node = orig_neigh_node; 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; /* Select ingoing or outgoing coding node */ if (in_coding) { |