linux-kernel - Re: [PATCH v2] media: omap3isp: Add missed v4l2_ctrl_handler_free() for preview_init

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Date:   Thu, 4 Jun 2020 12:33:21 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Chuhong Yuan <hslester96@...il.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Ilkka Myllyperkio <ilkka.myllyperkio@...ica.fi>,
        "Ivan T . Ivanov" <iivanov@...sol.com>,
        Vimarsh Zutshi <vimarsh.zutshi@...il.com>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sakari Ailus <sakari.ailus@....fi>
Subject: Re: [PATCH v2] media: omap3isp: Add missed v4l2_ctrl_handler_free()
 for preview_init_entities()

Hi Chuhong,

(CC'ing Sakari Ailus)

Thank you for the patch.

On Thu, Jun 04, 2020 at 12:41:22AM +0800, Chuhong Yuan wrote:
> preview_init_entities() does not call v4l2_ctrl_handler_free() when
> it fails.
> Add the missed function to fix it.
> 
> Fixes: de1135d44f4f ("[media] omap3isp: CCDC, preview engine and resizer]")

There's an extra ']' at the end. Apart from that,

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

Sakari, could you take this patch ?

> Signed-off-by: Chuhong Yuan <hslester96@...il.com>
> ---
> Changes in v2:
>   - Fix the typo.
> 
>  drivers/media/platform/omap3isp/isppreview.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/omap3isp/isppreview.c b/drivers/media/platform/omap3isp/isppreview.c
> index 4dbdf3180d10..607b7685c982 100644
> --- a/drivers/media/platform/omap3isp/isppreview.c
> +++ b/drivers/media/platform/omap3isp/isppreview.c
> @@ -2287,7 +2287,7 @@ static int preview_init_entities(struct isp_prev_device *prev)
>  	me->ops = &preview_media_ops;
>  	ret = media_entity_pads_init(me, PREV_PADS_NUM, pads);
>  	if (ret < 0)
> -		return ret;
> +		goto error_handler_free;
>  
>  	preview_init_formats(sd, NULL);
>  
> @@ -2320,6 +2320,8 @@ static int preview_init_entities(struct isp_prev_device *prev)
>  	omap3isp_video_cleanup(&prev->video_in);
>  error_video_in:
>  	media_entity_cleanup(&prev->subdev.entity);
> +error_handler_free:
> +	v4l2_ctrl_handler_free(&prev->ctrls);
>  	return ret;
>  }
>  

-- 
Regards,

Laurent Pinchart