linux-kernel - Re: [PATCH] drm/v3d: pass null pointers using NULL

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Date:   Thu, 11 Nov 2021 17:09:20 -0100
From:   Melissa Wen <mwen@...lia.com>
To:     Colin Ian King <colin.i.king@...glemail.com>
Cc:     Emma Anholt <emma@...olt.net>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Iago Toral Quiroga <itoral@...lia.com>,
        dri-devel@...ts.freedesktop.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/v3d: pass null pointers using NULL

On 11/10, Colin Ian King wrote:
> There are a couple of calls that are passing null pointers as
> integer zeros rather than NULL. Fix this by using NULL instead.
> 
> Fixes: 07c2a41658c4 ("drm/v3d: alloc and init job in one shot")
> Signed-off-by: Colin Ian King <colin.i.king@...il.com>
> ---
>  drivers/gpu/drm/v3d/v3d_gem.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
> index e47ae40a865a..c7ed2e1cbab6 100644
> --- a/drivers/gpu/drm/v3d/v3d_gem.c
> +++ b/drivers/gpu/drm/v3d/v3d_gem.c
> @@ -774,7 +774,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
>  
>  	if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
>  		ret = v3d_job_init(v3d, file_priv, (void *)&clean_job, sizeof(*clean_job),
> -				   v3d_job_free, 0, 0, V3D_CACHE_CLEAN);
> +				   v3d_job_free, 0, NULL, V3D_CACHE_CLEAN);
>  		if (ret)
>  			goto fail;
>  
> @@ -1007,7 +1007,7 @@ v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
>  		goto fail;
>  
>  	ret = v3d_job_init(v3d, file_priv, (void *)&clean_job, sizeof(*clean_job),
> -			   v3d_job_free, 0, 0, V3D_CACHE_CLEAN);
> +			   v3d_job_free, 0, NULL, V3D_CACHE_CLEAN);
>  	if (ret)
>  		goto fail;

Hi Colin,

This fix has been already done:
https://cgit.freedesktop.org/drm/drm-misc/commit/?id=75ad021f21927311b8d454939eb248a50df92525

Thanks, anyway.

Melissa
>  
> -- 
> 2.32.0
> 

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