Re: [PATCH v5 10/22] media: rzg2l-cru: Remove unnecessary WARN_ON check in format func

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:40PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> 
> `WARN_ON(!fmt)` check in `rzg2l_cru_format_bytesperline()` is unnecessary
> because the `rzg2l_cru_format_align()` function ensures that a valid
> `pixelformat` is set before calling `rzg2l_cru_format_bytesperline()`. As
> a result, `rzg2l_cru_format_from_pixel()` is guaranteed to return a
> non-NULL value, making the check redundant.
> 
> Additionally, the return type of `rzg2l_cru_format_bytesperline()` is
> `u32`, but the code returned `-EINVAL`, a negative value. This mismatch is
> now  resolved by removing the invalid error return path.

s/now  /now /

> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>

> ---
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index de88c0fab961..401ef7be58ec 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -835,9 +835,6 @@ static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
>  
>  	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
>  
> -	if (WARN_ON(!fmt))
> -		return -EINVAL;
> -
>  	return pix->width * fmt->bpp[0];
>  }
>  

-- 
Regards,

Laurent Pinchart