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

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Date:   Mon, 22 Aug 2022 12:54:00 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
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()

Le 22/08/2022 à 11:56, Laurent Pinchart a écrit :
> 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,

+1.
I assume that it can be fixed when applied (otherwise tell me and I'll 
send a v2).

CJ

> 
> 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);
>