3.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexander Stein <alexander.st...@systec-electronic.com>
commit ab48b03ec9ae1840a1e427e2375bd0d9d554b4ed upstream.
If the restart timer is running due to BUS-OFF and the device is
disconnected an dev_put will decrease the usage counter to -1 thus
blocking the interface removal, resulting in the following dmesg
lines repeating every 10s:
can: notifier: receive list not found for dev can0
can: notifier: receive list not found for dev can0
can: notifier: receive list not found for dev can0
unregister_netdevice: waiting for can0 to become free. Usage count = -1
Signed-off-by: Alexander Stein <alexander.st...@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/net/can/dev.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -609,8 +609,7 @@ void close_candev(struct net_device *dev
{
struct can_priv *priv = netdev_priv(dev);
- if (del_timer_sync(&priv->restart_timer))
- dev_put(dev);
+ del_timer_sync(&priv->restart_timer);
can_flush_echo_skb(dev);
}
EXPORT_SYMBOL_GPL(close_candev);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
