46   a->fd = -1;  in proc_init()
52   if (a->fd >= 0)  in proc_cleanup()
54       close(a->fd);  in proc_cleanup()
55       a->fd = -1;  in proc_cleanup()
143       if (a->fd >= 0)  in proc_setup()
144 	close(a->fd);  in proc_setup()
151       a->fd = open(buf, a->fd_rw ? O_RDWR : O_RDONLY);  in proc_setup()
152       if (a->fd < 0)  in proc_setup()
159 	  a->fd = open(buf, a->fd_rw ? O_RDWR : O_RDONLY);  in proc_setup()
161       if (a->fd < 0)  in proc_setup()
165   return a->fd;  in proc_setup()
171   int fd = proc_setup(d, 0);  in proc_read()  local
174   if (fd < 0)  in proc_read()
176   res = pread(fd, buf, len, pos);  in proc_read()
190   int fd = proc_setup(d, 1);  in proc_write()  local
193   if (fd < 0)  in proc_write()
195   res = pwrite(fd, buf, len, pos);  in proc_write()