[PATCH] media: imx7-mipi-csis: Add the missed v4l2_async_notifier_cleanup in remove

[Chuhong Yuan]

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);
 
 	pm_runtime_disable(&pdev->dev);
 	mipi_csis_pm_suspend(&pdev->dev, true);
-- 
2.24.0