diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index e8b9319aeadb321e4c6a7b50dad5d77463254611..0a7899d5c65cad46ced10893b3558e2f77df1a3d 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -550,6 +550,7 @@ static void unregister_dax_dev(void *dev)
 	 */
 	dax_dev->alive = false;
 	synchronize_rcu();
+	unmap_mapping_range(dax_dev->inode->i_mapping, 0, 0, 1);
 	cdev_del(cdev);
 	device_unregister(dev);
 }