Re: [PATCH v2] drm/mediatek: stop using 0 as NULL pointer

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Hi, Miles:

Miles Chen <miles.chen@xxxxxxxxxxxx> 於 2023年1月11日 週三 上午10:52寫道:
>
> Use NULL for NULL pointer to fix the following sparse warning:
> drivers/gpu/drm/mediatek/mtk_drm_gem.c:265:27: sparse: warning: Using plain integer as NULL pointer

Applied to mediatek-drm-next [1], thanks.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next

Regards,
Chun-Kuang.

>
> Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function")
> Signed-off-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
>
> ---
>
> Change since v1:
> Add Fixes tag
>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> index 47e96b0289f9..06aadd5e7f5b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> @@ -262,6 +262,6 @@ void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
>                 return;
>
>         vunmap(vaddr);
> -       mtk_gem->kvaddr = 0;
> +       mtk_gem->kvaddr = NULL;
>         kfree(mtk_gem->pages);
>  }
> --
> 2.18.0
>




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