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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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