Re: [PATCH v3 2/4] media: renesas: csisp: Add missing media_entity_cleanup()

[Jacopo Mondi]

Hi Biren

On Sat, Jul 04, 2026 at 11:16:41PM +0530, Biren Pandya wrote:
> The probe error path and the remove function fail to call
> media_entity_cleanup() upon teardown.
>
> While currently a no-op in most cases, calling media_entity_cleanup()
> is an API requirement for entities initialized with media_entity_pads_init()
> to prevent memory leaks.
>
> Add the missing media_entity_cleanup() calls. Furthermore, introduce a
> dedicated error_entity label in the probe error path to ensure the cleanup
> is only invoked if media_entity_pads_init() has successfully completed.

Empty line please

It could be added when applying though


> Signed-off-by: Biren Pandya <birenpandya@xxxxxxxxx>
> ---
>  drivers/media/platform/renesas/rcar-isp/csisp.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/renesas/rcar-isp/csisp.c b/drivers/media/platform/renesas/rcar-isp/csisp.c
> index 8fb2cc3b5650..61558a71ee35 100644
> --- a/drivers/media/platform/renesas/rcar-isp/csisp.c
> +++ b/drivers/media/platform/renesas/rcar-isp/csisp.c
> @@ -539,7 +539,7 @@ static int risp_probe(struct platform_device *pdev)
>
>  	ret = v4l2_subdev_init_finalize(&isp->subdev);
>  	if (ret)
> -		goto error_notifier;
> +		goto error_entity;
>
>  	ret = v4l2_async_register_subdev(&isp->subdev);
>  	if (ret < 0)
> @@ -551,6 +551,8 @@ static int risp_probe(struct platform_device *pdev)
>
>  error_subdev:
>  	v4l2_subdev_cleanup(&isp->subdev);
> +error_entity:
> +	media_entity_cleanup(&isp->subdev.entity);
>  error_notifier:
>  	v4l2_async_nf_unregister(&isp->notifier);
>  	v4l2_async_nf_cleanup(&isp->notifier);
> @@ -569,6 +571,7 @@ static void risp_remove(struct platform_device *pdev)
>
>  	v4l2_async_unregister_subdev(&isp->subdev);
>  	v4l2_subdev_cleanup(&isp->subdev);
> +	media_entity_cleanup(&isp->subdev.entity);

Reviewed-by: Jacopo Mondi <jacopo.mondi+renesas@xxxxxxxxxxxxxxxx>

Thanks
  j
>
>  	pm_runtime_disable(&pdev->dev);
>  }
> --
> 2.50.1 (Apple Git-155)
>
>