[PATCH 3.14 30/53] HID: elo: kill not flush the work

Greg Kroah-Hartman
2016-07-25T21:16:18Z

From: Oliver Neukum <oneukum@suse.com>

commit ed596a4a88bd161f868ccba078557ee7ede8a6ef upstream.

Flushing a work that reschedules itself is not a sensible operation. It needs
to be killed. Failure to do so leads to a kernel panic in the timer code.

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/hid/hid-elo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hid/hid-elo.c
+++ b/drivers/hid/hid-elo.c
@@ -259,7 +259,7 @@ static void elo_remove(struct hid_device
struct elo_priv *priv = hid_get_drvdata(hdev);

hid_hw_stop(hdev);
- flush_workqueue(wq);
+ cancel_delayed_work_sync(&priv->work);
kfree(priv);
}