am 5d268fda: Merge "Make sure volume is vfat before fsck\'ing." into mnc-dev

* commit '5d268fdac49bd3174a7f0c6dbb042162ae87a695':
  Make sure volume is vfat before fsck'ing.

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;