Re: [PATCH 2/6] drm/xen-front: Fix misused IS_ERR_OR_NULL checks

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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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