Re: [PATCH 2/2] media: stm32-dcmi: fix probe error path & module remove

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Reviewed-by: Hugues Fruchet <hugues.fruchet@xxxxxx>

On 7/28/20 8:37 AM, Alain Volmat wrote:
> This commit add missing vb2_queue_release calls with the
> probe error path and module remove.
> Missing v4l2_async_notifier_unregister is also added within
> the probe error path
> 
> Fixes: 37404f91ef8b ("[media] stm32-dcmi: STM32 DCMI camera interface driver")
> Signed-off-by: Alain Volmat <alain.volmat@xxxxxx>
> ---
>   drivers/media/platform/stm32/stm32-dcmi.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
> index 5e60d4c6eeeb..57830ee691be 100644
> --- a/drivers/media/platform/stm32/stm32-dcmi.c
> +++ b/drivers/media/platform/stm32/stm32-dcmi.c
> @@ -2004,7 +2004,7 @@ static int dcmi_probe(struct platform_device *pdev)
>   
>   	ret = dcmi_graph_init(dcmi);
>   	if (ret < 0)
> -		goto err_media_entity_cleanup;
> +		goto err_vb2_queue_release;
>   
>   	/* Reset device */
>   	ret = reset_control_assert(dcmi->rstc);
> @@ -2030,7 +2030,10 @@ static int dcmi_probe(struct platform_device *pdev)
>   	return 0;
>   
>   err_cleanup:
> +	v4l2_async_notifier_unregister(&dcmi->notifier);
>   	v4l2_async_notifier_cleanup(&dcmi->notifier);
> +err_vb2_queue_release:
> +	vb2_queue_release(q);
>   err_media_entity_cleanup:
>   	media_entity_cleanup(&dcmi->vdev->entity);
>   err_device_release:
> @@ -2052,6 +2055,7 @@ static int dcmi_remove(struct platform_device *pdev)
>   
>   	v4l2_async_notifier_unregister(&dcmi->notifier);
>   	v4l2_async_notifier_cleanup(&dcmi->notifier);
> +	vb2_queue_release(&dcmi->queue);
>   	media_entity_cleanup(&dcmi->vdev->entity);
>   	v4l2_device_unregister(&dcmi->v4l2_dev);
>   	media_device_cleanup(&dcmi->mdev);
> 




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