Fix various bugs.

Change-Id: I46e3001e6857480a77253be24b1753b2e4d88e69
diff --git a/nandroid.c b/nandroid.c
index 4f7724a..5d7b9d4 100644
--- a/nandroid.c
+++ b/nandroid.c
@@ -227,7 +227,7 @@
         return ret;
     }
     */
-    if (0 != (ret = format_device(mount_point))) {
+    if (0 != (ret = format_volume(mount_point))) {
         ui_print("Error while formatting %s!\n", mount_point);
         return ret;
     }