diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c
index 3f1cb32..2d66234 100644
--- a/drivers/mtd/maps/sun_uflash.c
+++ b/drivers/mtd/maps/sun_uflash.c
@@ -101,7 +101,7 @@
 
 	up->mtd->owner = THIS_MODULE;
 
-	add_mtd_device(up->mtd);
+	mtd_device_register(up->mtd, NULL, 0);
 
 	dev_set_drvdata(&op->dev, up);
 
@@ -126,7 +126,7 @@
 	struct uflash_dev *up = dev_get_drvdata(&op->dev);
 
 	if (up->mtd) {
-		del_mtd_device(up->mtd);
+		mtd_device_unregister(up->mtd);
 		map_destroy(up->mtd);
 	}
 	if (up->map.virt) {