diff --git a/drivers/of/address.c b/drivers/of/address.c
index 596381e70c0a..e93b7b527f61 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -466,7 +466,8 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 	}
 	if (ranges == NULL || rlen == 0) {
 		offset = of_read_number(addr, na);
-		memset(addr, 0, pna * 4);
+		/* set address to zero, pass flags through */
+		memset(addr + pbus->flag_cells, 0, (pna - pbus->flag_cells) * 4);
 		pr_debug("empty ranges; 1:1 translation\n");
 		goto finish;
 	}