72     close(fd);  in write_file()
104         close(fd);  in _chown()
109     close(fd);  in _chown()
127         close(fd);  in _chmod()
132     close(fd);  in _chmod()
164     close(fd);  in setkey()
192     close(s);  in __ifupdown()
429                     close(fd);  in do_mount()
433                         close(loop);  in do_mount()
437                     close(loop);  in do_mount()
442             close(loop);  in do_mount()
445         close(fd);  in do_mount()
711         close(fd1);  in do_copy()
713         close(fd2);  in do_copy()