drm/nv04-nv40: unregister irq handler on destroy

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nv04_display.c

@@ -213,6 +213,9 @@ nv04_display_destroy(struct drm_device *dev)
 
 	NV_DEBUG_KMS(dev, "\n");
 
+	nouveau_irq_unregister(dev, 24);
+	nouveau_irq_unregister(dev, 25);
+
 	/* Turn every CRTC off. */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct drm_mode_set modeset = {