Re: [Xen-devel] [PATCH] drm/xen: fix passing zero to 'PTR_ERR' warning

[Oleksandr Andrushchenko]

On 3/30/20 12:59, Ding Xiang wrote:
> Fix a static code checker warning:
>      drivers/gpu/drm/xen/xen_drm_front.c:404 xen_drm_drv_dumb_create()
>      warn: passing zero to 'PTR_ERR'
>
> Signed-off-by: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
> ---
>   drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
> index 4be49c1..3741420 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front.c
> +++ b/drivers/gpu/drm/xen/xen_drm_front.c
> @@ -401,7 +401,7 @@ static int xen_drm_drv_dumb_create(struct drm_file *filp,
>   
>   	obj = xen_drm_front_gem_create(dev, args->size);
>   	if (IS_ERR_OR_NULL(obj)) {
> -		ret = PTR_ERR(obj);
> +		ret = PTR_ERR_OR_ZERO(obj);
>   		goto fail;
>   	}
>