linux-kernel - Re: [PATCH v6 06/17] media: uvcvideo: Do not check for V4L2_CTRL_WHICH_DEF

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Message-ID: <d9beb69d-6b8c-74b3-5755-19dda106c1a1@xs4all.nl>
Date:   Thu, 18 Mar 2021 08:16:54 +0100
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Ricardo Ribalda <ribalda@...omium.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        tfiga@...omium.org
Subject: Re: [PATCH v6 06/17] media: uvcvideo: Do not check for
 V4L2_CTRL_WHICH_DEF_VAL

On 17/03/2021 17:45, Ricardo Ribalda wrote:
> The framework already checks for us if V4L2_CTRL_WHICH_DEF_VAL is
> written.
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>

Reviewed-by: Hans Verkuil <hverkuil-cisco@...all.nl>

Thanks!

	Hans

> ---
>  drivers/media/usb/uvc/uvc_v4l2.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
> index 252136cc885c..47b0e3224205 100644
> --- a/drivers/media/usb/uvc/uvc_v4l2.c
> +++ b/drivers/media/usb/uvc/uvc_v4l2.c
> @@ -1089,10 +1089,6 @@ static int uvc_ioctl_s_try_ext_ctrls(struct uvc_fh *handle,
>  	unsigned int i;
>  	int ret;
>  
> -	/* Default value cannot be changed */
> -	if (ctrls->which == V4L2_CTRL_WHICH_DEF_VAL)
> -		return -EINVAL;
> -
>  	ret = uvc_ctrl_begin(chain);
>  	if (ret < 0)
>  		return ret;
>