396 	if (current->signal->tty != tty)  in tty_check_change()
499 	tty = p->signal->tty;  in proc_clear_tty()
500 	p->signal->tty = NULL;  in proc_clear_tty()
529 	if (current->signal->tty) {  in __proc_set_tty()
531 		tty_kref_put(current->signal->tty);  in __proc_set_tty()
533 	put_pid(current->signal->tty_old_pgrp);  in __proc_set_tty()
534 	current->signal->tty = tty_kref_get(tty);  in __proc_set_tty()
535 	current->signal->tty_old_pgrp = NULL;  in __proc_set_tty()
551 	tty = tty_kref_get(current->signal->tty);  in get_current_tty()
613 			if (p->signal->tty == tty) {  in tty_signal_session_leader()
614 				p->signal->tty = NULL;  in tty_signal_session_leader()
619 			if (!p->signal->leader) {  in tty_signal_session_leader()
625 			put_pid(p->signal->tty_old_pgrp);  /* A noop */  in tty_signal_session_leader()
629 				p->signal->tty_old_pgrp = get_pid(tty->pgrp);  in tty_signal_session_leader()
885 	if (!current->signal->leader)  in disassociate_ctty()
906 		old_pgrp = current->signal->tty_old_pgrp;  in disassociate_ctty()
907 		current->signal->tty_old_pgrp = NULL;  in disassociate_ctty()
918 	put_pid(current->signal->tty_old_pgrp);  in disassociate_ctty()
919 	current->signal->tty_old_pgrp = NULL;  in disassociate_ctty()
921 	tty = tty_kref_get(current->signal->tty);  in disassociate_ctty()
2149 	    current->signal->leader &&  in tty_open()
2150 	    !current->signal->tty &&  in tty_open()
2290 	if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))  in tiocsti()
2464 	if (current->signal->leader && (task_session(current) == tty->session))  in tiocsctty()
2471 	if (!current->signal->leader || current->signal->tty) {  in tiocsctty()
2567 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgpgrp()
2598 	if (!current->signal->tty ||  in tiocspgrp()
2599 	    (current->signal->tty != real_tty) ||  in tiocspgrp()
2642 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgsid()
2907 		if (current->signal->tty != tty)  in tty_ioctl()
3079 		if (p->signal->tty == tty) {  in __do_SAK()