399 	if (current->signal->tty != tty)  in __tty_check_change()
510 	tty = p->signal->tty;  in proc_clear_tty()
511 	p->signal->tty = NULL;  in proc_clear_tty()
540 	if (current->signal->tty) {  in __proc_set_tty()
542 			  current->signal->tty->name);  in __proc_set_tty()
543 		tty_kref_put(current->signal->tty);  in __proc_set_tty()
545 	put_pid(current->signal->tty_old_pgrp);  in __proc_set_tty()
546 	current->signal->tty = tty_kref_get(tty);  in __proc_set_tty()
547 	current->signal->tty_old_pgrp = NULL;  in __proc_set_tty()
563 	tty = tty_kref_get(current->signal->tty);  in get_current_tty()
625 			if (p->signal->tty == tty) {  in tty_signal_session_leader()
626 				p->signal->tty = NULL;  in tty_signal_session_leader()
631 			if (!p->signal->leader) {  in tty_signal_session_leader()
637 			put_pid(p->signal->tty_old_pgrp);  /* A noop */  in tty_signal_session_leader()
641 				p->signal->tty_old_pgrp = get_pid(tty->pgrp);  in tty_signal_session_leader()
886 	if (!current->signal->leader)  in disassociate_ctty()
907 		old_pgrp = current->signal->tty_old_pgrp;  in disassociate_ctty()
908 		current->signal->tty_old_pgrp = NULL;  in disassociate_ctty()
919 	put_pid(current->signal->tty_old_pgrp);  in disassociate_ctty()
920 	current->signal->tty_old_pgrp = NULL;  in disassociate_ctty()
922 	tty = tty_kref_get(current->signal->tty);  in disassociate_ctty()
2142 	    current->signal->leader &&  in tty_open()
2143 	    !current->signal->tty &&  in tty_open()
2284 	if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))  in tiocsti()
2458 	if (current->signal->leader && (task_session(current) == tty->session))  in tiocsctty()
2465 	if (!current->signal->leader || current->signal->tty) {  in tiocsctty()
2561 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgpgrp()
2591 	if (!current->signal->tty ||  in tiocspgrp()
2592 	    (current->signal->tty != real_tty) ||  in tiocspgrp()
2635 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgsid()
2900 		if (current->signal->tty != tty)  in tty_ioctl()
3072 		if (p->signal->tty == tty) {  in __do_SAK()