Hi Oliver,
Thank you for the patch.
On Tue, Apr 30, 2019 at 02:28:14PM +0200, Oliver Neukum wrote:
> We need to check whether this work we are canceling actually is
> initialized.
I think we should add
Fixes: e5225c820c05 ("media: uvcvideo: Send a control event when a Control Change interrupt arrives")
> Signed-off-by: Oliver Neukum <oneukum@xxxxxxxx>
> Reported-by: syzbot+2e1ef9188251d9cc7944@xxxxxxxxxxxxxxxxxxxxxxxxx
> ---
> drivers/media/usb/uvc/uvc_ctrl.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
> index 14cff91b7aea..2b510c56cf91 100644
> --- a/drivers/media/usb/uvc/uvc_ctrl.c
> +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> @@ -2350,7 +2350,9 @@ void uvc_ctrl_cleanup_device(struct uvc_device *dev)
> struct uvc_entity *entity;
> unsigned int i;
>
> - cancel_work_sync(&dev->async_ctrl.work);
> + /* can be uninitialized if we are aborting on probe error */
Let's capitalise the comment and end it with a period to match the rest
of the driver. With these small issues fixed,
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
If you agree with the changes there's no need to resubmit, I'll fix when
applying.
> + if (dev->async_ctrl.work.func)
> + cancel_work_sync(&dev->async_ctrl.work);
>
> /* Free controls and control mappings for all entities. */
> list_for_each_entry(entity, &dev->entities, list) {
--
Regards,
Laurent Pinchart
