more fixes

Change-Id: Ic55d94ef69b6b8ea4ec2a6df708a9444e9d5f4e5
diff --git a/roots.c b/roots.c
index a33190a..c1c37a3 100644
--- a/roots.c
+++ b/roots.c
@@ -302,7 +302,7 @@
     }
 
     if (strcmp(v->fs_type, "emmc") == 0) {
-        return erase_raw_partition(v->device);
+        return erase_raw_partition("emmc", v->device);
     }
 
     if (strcmp(v->fs_type, "ext4") == 0) {