From: Sven Eckelmann <sven.eckelmann@xxxxxx>
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@xxxxxx>
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/staging/batman-adv/hard-interface.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c
index f6345c4..892166b 100644
--- a/drivers/staging/batman-adv/hard-interface.c
+++ b/drivers/staging/batman-adv/hard-interface.c
@@ -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;
--
1.7.2
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