linux-kernel - Re: [PATCH 4/4] drm/amd/display: Fix warning comparing pointer to 0

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Date: Mon, 1 Jul 2024 15:22:06 -0400
From: Alex Deucher <alexdeucher@...il.com>
To: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc: harry.wentland@....com, sunpeng.li@....com, Rodrigo.Siqueira@....com, 
	alexander.deucher@....com, christian.koenig@....com, Xinhui.Pan@....com, 
	airlied@...il.com, daniel@...ll.ch, amd-gfx@...ts.freedesktop.org, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH 4/4] drm/amd/display: Fix warning comparing pointer to 0

Applied the series.  Thanks!

Alex

On Mon, Jul 1, 2024 at 3:15 AM Jiapeng Chong
<jiapeng.chong@...ux.alibaba.com> wrote:
>
> Avoid pointer type value compared with 0 to make code clear.
>
> ./drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_factory.c:14:12-13: WARNING comparing pointer to 0.
>
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9458
> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
> ---
>  .../amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_factory.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_factory.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_factory.c
> index 1a0da8c6df5a..f56abe9ab919 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_factory.c
> +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_factory.c
> @@ -11,7 +11,7 @@ bool dml2_core_create(enum dml2_project_id project_id, struct dml2_core_instance
>  {
>         bool result = false;
>
> -       if (out == 0)
> +       if (!out)
>                 return false;
>
>         memset(out, 0, sizeof(struct dml2_core_instance));
> --
> 2.20.1.7.g153144c
>