[11/12] Staging: batman-adv: Track references of batman_if in set_primary_if
Commit Message
set_primary_if exchanges the current primary interfaces with a new one.
This is a new reference and thus we have to count it and decrease the
count of the old primary interface.
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
---
drivers/staging/batman-adv/hard-interface.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
@@ -111,9 +111,17 @@ static void set_primary_if(struct bat_priv *bat_priv,
{
struct batman_packet *batman_packet;
struct vis_packet *vis_packet;
+ struct batman_if *old_if;
+ if (batman_if)
+ hardif_hold(batman_if);
+
+ old_if = bat_priv->primary_if;
bat_priv->primary_if = batman_if;
+ if (old_if)
+ hardif_put(old_if);
+
if (!bat_priv->primary_if)
return;