linux-kernel - Re: [PATCH] media: dw100: Fix an error handling path in dw100

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Message-ID: <YwNS5jr2+ersua9B@pendragon.ideasonboard.com>
Date:   Mon, 22 Aug 2022 12:56:54 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     Xavier Roumegue <xavier.roumegue@....nxp.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: Re: [PATCH] media: dw100: Fix an error handling path in dw100_probe()

Hi Christophe,

Thank you for the patch.

On Mon, Aug 22, 2022 at 11:40:43AM +0200, Christophe JAILLET wrote:
> After a successful call to media_device_init() it is safer to call
> media_device_init().

I assume you meant media_device_cleanup() ? With this fixed,

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

> Add the missing call in the error handling path of the probe, as already
> done in the remove function.
> 
> Fixes: bd090d4d995a ("media: dw100: Add i.MX8MP dw100 dewarper driver")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
>  drivers/media/platform/nxp/dw100/dw100.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/media/platform/nxp/dw100/dw100.c b/drivers/media/platform/nxp/dw100/dw100.c
> index 94518f0e486b..b3b057798ab6 100644
> --- a/drivers/media/platform/nxp/dw100/dw100.c
> +++ b/drivers/media/platform/nxp/dw100/dw100.c
> @@ -1623,6 +1623,7 @@ static int dw100_probe(struct platform_device *pdev)
>  error_v4l2:
>  	video_unregister_device(vfd);
>  err_m2m:
> +	media_device_cleanup(&dw_dev->mdev);
>  	v4l2_m2m_release(dw_dev->m2m_dev);
>  err_v4l2:
>  	v4l2_device_unregister(&dw_dev->v4l2_dev);

-- 
Regards,

Laurent Pinchart