848 	int retval = 0;  in iterate_tty_read()  local
1343 	int retval = 0;  in tty_reopen()  local
1402 	int retval;  in tty_init_dev()  local
1885 	int retval;  in tty_open_current_tty()  local
2027 	int retval;  in tty_open_by_driver()  local
2100 	int noctty, retval;  in tty_open()  local
2203 	int retval = 0;  in __tty_fasync()  local
2237 	int retval = -ENOTTY;  in tty_fasync()  local
2464 	int retval;  in send_break()  local
2502 	int retval = -ENOTTY;  in tty_tiocmget()  local
2528 	int retval;  in tty_tiocmset()  local
2557 	int retval = -EINVAL;  in tty_tiocgicount()  local
2625 	int retval;  in tty_ioctl()  local
2842 	int retval = -ENOIOCTLCMD;  in tty_compat_ioctl()  local
3207 	int retval;  in tty_register_device_attr()  local