vold: Logging to catch when the disk checker crashes
(could happen due to a really messed up card)

Signed-off-by: San Mehat <san@google.com>
diff --git a/vold/volmgr_vfat.c b/vold/volmgr_vfat.c
index 835b71d..7a4e12f 100644
--- a/vold/volmgr_vfat.c
+++ b/vold/volmgr_vfat.c
@@ -66,6 +66,9 @@
     } else if (rc == 2) {
         LOG_VOL("Filesystem check failed (not a FAT filesystem)");
         return -ENODATA;
+    } else if (rc == -11) {
+        LOG_VOL("Filesystem check crashed");
+        return -EIO;
     } else {
         LOG_VOL("Filesystem check failed (unknown exit code %d)", rc);
         return -EIO;