usbnet: ipheth: race between ipheth_close and error handling

[ Upstream commit e5876b088b ]

ipheth_sndbulk_callback() can submit carrier_work
as a part of its error handling. That means that
the driver must make sure that the work is cancelled
after it has made sure that no more URB can terminate
with an error condition.

Hence the order of actions in ipheth_close() needs
to be inverted.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Foster Snowhill <forst@pen.gy>
Tested-by: Georgi Valkov <gvalkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Oliver Neukum 2024-08-06 19:28:05 +02:00 committed by Greg Kroah-Hartman
parent a4858b00a1
commit 6604d76253

View File

@ -475,8 +475,8 @@ static int ipheth_close(struct net_device *net)
{
struct ipheth_device *dev = netdev_priv(net);
cancel_delayed_work_sync(&dev->carrier_work);
netif_stop_queue(net);
cancel_delayed_work_sync(&dev->carrier_work);
return 0;
}