mtd: struct device - replace bus_id with dev_name(), dev_set_name()

CC: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index ba0bd3d..7caf22c 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -280,7 +280,7 @@
 	ubi->dev.release = dev_release;
 	ubi->dev.devt = ubi->cdev.dev;
 	ubi->dev.class = ubi_class;
-	sprintf(&ubi->dev.bus_id[0], UBI_NAME_STR"%d", ubi->ubi_num);
+	dev_set_name(&ubi->dev, UBI_NAME_STR"%d", ubi->ubi_num);
 	err = device_register(&ubi->dev);
 	if (err)
 		return err;