__tty_check_change 2109 drivers/tty/n_tty.c 	return __tty_check_change(tty, SIGTTIN);
__tty_check_change   69 drivers/tty/tty_jobctrl.c 	return __tty_check_change(tty, SIGTTOU);
__tty_check_change  473 include/linux/tty.h extern int __tty_check_change(struct tty_struct *tty, int sig);