- if (!_key_id || !_file) {
- /* Either we don't have any data to read, or it wasn't
- encrypted, so we don't need to do anything else.
+ if (!_key_id || !_file || had_key) {
+ /* Either we don't have any data to read, it wasn't
+ encrypted, or we've already read it, so we don't
+ need to do anything else.