On Mon, Dec 09, 2019 at 04:58:28PM +0800, Chuhong Yuan wrote: > All drivers in imx call v4l2_async_notifier_cleanup() after unregistering > the notifier except this driver. > This should be a miss and we need to add the call to fix it. > > Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx> > --- > drivers/staging/media/imx/imx7-mipi-csis.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c > index 99166afca071..2bfa85bb84e7 100644 > --- a/drivers/staging/media/imx/imx7-mipi-csis.c > +++ b/drivers/staging/media/imx/imx7-mipi-csis.c > @@ -1105,6 +1105,7 @@ static int mipi_csis_remove(struct platform_device *pdev) > mipi_csis_debugfs_exit(state); > v4l2_async_unregister_subdev(&state->mipi_sd); > v4l2_async_notifier_unregister(&state->subdev_notifier); > + v4l2_async_notifier_cleanup(&state->subdev_notifier); > In this case the "state->subdev_notifier" was never initialized or used so both v4l2_async_notifier_unregister() and v4l2_async_notifier_cleanup() are no-ops. We should just delete "subdev_notifier". regards, dan carpenter
