Change drm_property_create_blob to return an ERR_PTR-encoded error on
failure, so we can pass the failure reason down.
Signed-off-by: NDaniel Stone <daniels@collabora.com>
Cc: Maarten Lankhorst <maarten.lankhorst@intel.com>
Tested-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>