Re: [PATCH v1] drm/xe: Use ERR_CAST to return an error-valued pointer

From: Matthew Brost
Date: Mon Sep 09 2024 - 12:16:33 EST


On Fri, Sep 06, 2024 at 03:01:09PM +0800, Yu Jiaoliang wrote:
> Instead of directly casting and returning an error-valued pointer,
> use ERR_CAST to make the error handling more explicit and improve
> code clarity.
>
> Signed-off-by: Yu Jiaoliang <yujiaoliang@xxxxxxxx>

Reviewed-by: Matthew Brost <matthew.brost@xxxxxxxxx>

> ---
> drivers/gpu/drm/xe/xe_sa.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_sa.c b/drivers/gpu/drm/xe/xe_sa.c
> index fe2cb2a96f78..e055bed7ae55 100644
> --- a/drivers/gpu/drm/xe/xe_sa.c
> +++ b/drivers/gpu/drm/xe/xe_sa.c
> @@ -53,7 +53,7 @@ struct xe_sa_manager *xe_sa_bo_manager_init(struct xe_tile *tile, u32 size, u32
> if (IS_ERR(bo)) {
> drm_err(&xe->drm, "failed to allocate bo for sa manager: %ld\n",
> PTR_ERR(bo));
> - return (struct xe_sa_manager *)bo;
> + return ERR_CAST(bo);
> }
> sa_manager->bo = bo;
> sa_manager->is_iomem = bo->vmap.is_iomem;
> --
> 2.34.1
>