Re: [PATCH v15 08/19] media: uvcvideo: uvc_ioctl_(g|s)_ext_ctrls: handle NoP case

[Hans de Goede]

Hi,

On 14-Nov-24 8:10 PM, Ricardo Ribalda wrote:
> If nothing needs to be done. Exit early.
> 
> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>

Regards,

Hans



> ---
>  drivers/media/usb/uvc/uvc_v4l2.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
> index 02fd5cbc3474..65dbb53b1e75 100644
> --- a/drivers/media/usb/uvc/uvc_v4l2.c
> +++ b/drivers/media/usb/uvc/uvc_v4l2.c
> @@ -1081,6 +1081,9 @@ static int uvc_ioctl_g_ext_ctrls(struct file *file, void *fh,
>  	u32 which;
>  	int ret;
>  
> +	if (!ctrls->count)
> +		return 0;
> +
>  	switch (ctrls->which) {
>  	case V4L2_CTRL_WHICH_DEF_VAL:
>  	case V4L2_CTRL_WHICH_CUR_VAL:
> @@ -1121,6 +1124,9 @@ static int uvc_ioctl_s_try_ext_ctrls(struct uvc_fh *handle,
>  	unsigned int i;
>  	int ret;
>  
> +	if (!ctrls->count)
> +		return 0;
> +
>  	ret = uvc_ctrl_check_access(chain, ctrls, ioctl);
>  	if (ret < 0)
>  		return ret;
>