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Staging: batman-adv: Create batman_if only on register event

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We try to get all events for all net_devices to be able to add special
sysfs folders for the batman-adv configuration. This also includes such
events like NETDEV_POST_INIT which has no valid kobject according to
v2.6.32-rc3-13-g7ffbe3f. This would create an oops in that situation.

It is enough to create the batman_if only on NETDEV_REGISTER events
because we will also receive those events for devices which already
existed when we registered the notifier call.

Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sven Eckelmann 2010-08-21 14:18:08 +02:00 committed by Greg Kroah-Hartman
parent 51e21ae3d7
commit 1189f130f8
1 changed files with 2 additions and 4 deletions
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6
drivers/staging/batman-adv/hard-interface.c
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@ -393,15 +393,13 @@ static int hard_if_event(struct notifier_block *this,
/* FIXME: each batman_if will be attached to a softif */
struct bat_priv *bat_priv = netdev_priv(soft_device);
if (!batman_if)
batman_if = hardif_add_interface(net_dev);
if (!batman_if && event == NETDEV_REGISTER)
batman_if = hardif_add_interface(net_dev);
if (!batman_if)
goto out;
switch (event) {
case NETDEV_REGISTER:
break;
case NETDEV_UP:
hardif_activate_interface(soft_device, bat_priv, batman_if);
break;