drm/i915: Move unload time opregion unregistration earlier

Move the opregion unregistration earlier to match its corresponding
registration order.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1458128348-15730-14-git-send-email-imre.deak@intel.com

drivers/gpu/drm/i915/i915_dma.c

@@ -1221,6 +1221,7 @@ int i915_driver_unload(struct drm_device *dev)
 	i915_teardown_sysfs(dev);
 
 	acpi_video_unregister();
+	intel_opregion_fini(dev);
 	i915_gem_shrinker_cleanup(dev_priv);
 
 	drm_vblank_cleanup(dev);
@@ -1250,8 +1251,6 @@ int i915_driver_unload(struct drm_device *dev)
 	cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work);
 	i915_destroy_error_state(dev);
 
-	intel_opregion_fini(dev);
-
 	/* Flush any outstanding unpin_work. */
 	flush_workqueue(dev_priv->wq);