From c82c9ce18c2a9959530dd4b6121eb4521c751d81 Mon Sep 17 00:00:00 2001
From: Makoto Onuki <omakoto@google.com>
Date: Wed, 24 Jun 2015 13:30:45 -0700
Subject: [PATCH] Make sure volume is vfat before fsck'ing.

Bug 21948137

Change-Id: I6843423fd8809d9e2f352059a810aa17dd83b3e3
---
 PublicVolume.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/PublicVolume.cpp b/PublicVolume.cpp
index 9d6887d..d17853b 100644
--- a/PublicVolume.cpp
+++ b/PublicVolume.cpp
@@ -94,6 +94,11 @@ status_t PublicVolume::doMount() {
     // TODO: expand to support mounting other filesystems
     readMetadata();
 
+    if (mFsType != "vfat") {
+        LOG(ERROR) << getId() << " unsupported filesystem " << mFsType;
+        return -EIO;
+    }
+
     if (vfat::Check(mDevPath)) {
         LOG(ERROR) << getId() << " failed filesystem check";
         return -EIO;