linux-kernel - Re: [Xen-devel] [PATCH] drm/xen: fix passing zero to 'PTR

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Date:   Tue, 31 Mar 2020 17:15:14 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Oleksandr Andrushchenko <andr2000@...il.com>
Cc:     Ding Xiang <dingxiang@...s.chinamobile.com>,
        oleksandr_andrushchenko@...m.com, airlied@...ux.ie,
        daniel@...ll.ch, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Xen-devel] [PATCH] drm/xen: fix passing zero to 'PTR_ERR'
 warning

On Tue, Mar 31, 2020 at 05:50:10PM +0300, Oleksandr Andrushchenko wrote:
> 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@...s.chinamobile.com>
> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>

merged to drm-misc-next-fixese.
-Daniel

> > ---
> >   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;
> >   	}

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch