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Re: [PATCH 2/6] drm/xen-front: Fix misused IS_ERR_OR_NULL checks
 
- To: Oleksandr Andrushchenko <andr2000@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, boris.ostrovsky@xxxxxxxxxx, airlied@xxxxxxxx, daniel@xxxxxxxx
 
- From: Jürgen Groß <jgross@xxxxxxxx>
 
- Date: Tue, 4 Aug 2020 08:12:46 +0200
 
- Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx, sstabellini@xxxxxxxxxx, dan.carpenter@xxxxxxxxxx, Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
 
- Delivery-date: Tue, 04 Aug 2020 06:12:51 +0000
 
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
 
 
 
On 31.07.20 14:51, Oleksandr Andrushchenko wrote:
 
From: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
The patch c575b7eeb89f: "drm/xen-front: Add support for Xen PV
display frontend" from Apr 3, 2018, leads to the following static
checker warning:
        drivers/gpu/drm/xen/xen_drm_front_gem.c:140 xen_drm_front_gem_create()
        warn: passing zero to 'ERR_CAST'
drivers/gpu/drm/xen/xen_drm_front_gem.c
    133  struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
    134                                                  size_t size)
    135  {
    136          struct xen_gem_object *xen_obj;
    137
    138          xen_obj = gem_create(dev, size);
    139          if (IS_ERR_OR_NULL(xen_obj))
    140                  return ERR_CAST(xen_obj);
Fix this and the rest of misused places with IS_ERR_OR_NULL in the
driver.
Fixes:  c575b7eeb89f: "drm/xen-front: Add support for Xen PV display frontend"
 
Again forgot to Cc stable?
Juergen
 
 
    
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