linux-kernel - Re: [PATCH v9 02/22] media: pvrusb2: Do not check for V4L2_CTRL_WHICH_DEF

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Date:   Thu, 10 Jun 2021 20:29:31 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Ricardo Ribalda <ribalda@...omium.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        tfiga@...omium.org, Mike Isely <isely@...ox.com>
Subject: Re: [PATCH v9 02/22] media: pvrusb2: Do not check for
 V4L2_CTRL_WHICH_DEF_VAL

Hi Ricardo,

Thank you for the patch.

On Fri, Mar 26, 2021 at 10:58:20AM +0100, Ricardo Ribalda wrote:
> The framework already checks for us if V4L2_CTRL_WHICH_DEF_VAL is
> written.
> 
> Cc: Mike Isely <isely@...ox.com>
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> Reviewed-by: Hans Verkuil <hverkuil-cisco@...all.nl>

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

> ---
>  drivers/media/usb/pvrusb2/pvrusb2-v4l2.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
> index 9657c1883311..c04ab7258d64 100644
> --- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
> +++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
> @@ -640,10 +640,6 @@ static int pvr2_s_ext_ctrls(struct file *file, void *priv,
>  	unsigned int idx;
>  	int ret;
>  
> -	/* Default value cannot be changed */
> -	if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL)
> -		return -EINVAL;
> -
>  	ret = 0;
>  	for (idx = 0; idx < ctls->count; idx++) {
>  		ctrl = ctls->controls + idx;

-- 
Regards,

Laurent Pinchart