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Staging: batman-adv: Track references of batman_if in set_primary_if

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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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sven Eckelmann 2010-09-18 21:01:21 +02:00 committed by Greg Kroah-Hartman
parent 399fb5b445
commit 7e8158b341
1 changed files with 8 additions and 0 deletions
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8
drivers/staging/batman-adv/hard-interface.c
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@ -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;