Range check in MediaScanner::processDirectory

Make sure we don't have an empty string before checking if it's a
directory since this string is tainted.

Change-Id: I5eb310ced58c3c64a7af2d11b80326efe5adbcab
1 file changed
tree: d99c5ddc4313f326d5dffde3ee56710a24450360
  1. camera/
  2. cmds/
  3. include/
  4. media/