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drm/xen: Simplify fb_create

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The current code is a pretty good wtf moment, since we drop the
reference before we use it. It's not a big deal, because a) we only
use the pointer, so doesn't blow up and the real reason b) fb->obj[0]
already holds a full reference for us.

Might as well take the real pointer ins't of complicated games that
baffle.

Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
Link: https://patchwork.freedesktop.org/patch/msgid/20191115092120.4445-7-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2019-11-15 10:21:18 +01:00
parent 931e691cc6
commit 93adc0c2cb
1 changed files with 1 additions and 8 deletions
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9
drivers/gpu/drm/xen/xen_drm_front_kms.c
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@ -63,14 +63,7 @@ fb_create(struct drm_device *dev, struct drm_file *filp,
if (IS_ERR_OR_NULL(fb))
return fb;
gem_obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
if (!gem_obj) {
DRM_ERROR("Failed to lookup GEM object\n");
ret = -ENOENT;
goto fail;
}
drm_gem_object_put_unlocked(gem_obj);
gem_obj = fb->obj[0];
ret = xen_drm_front_fb_attach(drm_info->front_info,
xen_drm_front_dbuf_to_cookie(gem_obj),