Subject: Re: [PATCH] staging: media: sunxi: Add bool cast to value

From: Paul Kocialkowski <[email-masked]>
Date: Thu, 18 Jul 2019 09:47:58 +0200

Hi,

On Wed 17 Jul 19, 19:53, Nishka Dasgupta wrote:
> Typecast as bool the return value of cedrus_find_format in
> cedrus_check_format as the return value of cedrus_check_format is always
> treated like a boolean value.

Thanks for the patch! Could we also add !! to the returned pointer so that
we are sure that the function returns either false or true, but never a
non-zero value that is not true?

Cheers,

Paul

> Signed-off-by: Nishka Dasgupta <[email-masked]>
> ---
>  drivers/staging/media/sunxi/cedrus/cedrus_video.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
> index e2b530b1a956..f00a048a0a01 100644
> --- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
> +++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
> @@ -86,7 +86,7 @@ static struct cedrus_format *cedrus_find_format(u32 pixelformat, u32 directions,
>  static bool cedrus_check_format(u32 pixelformat, u32 directions,
>  				unsigned int capabilities)
>  {
> -	return cedrus_find_format(pixelformat, directions, capabilities);
> +	return (bool)cedrus_find_format(pixelformat, directions, capabilities);
>  }
>  
>  static void cedrus_prepare_format(struct v4l2_pix_format *pix_fmt)
> -- 
> 2.19.1
> 

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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