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
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),