396 	if (current->signal->tty != tty)  in tty_check_change()
405 	if (task_pgrp(current) == tty->pgrp)  in tty_check_change()
414 	kill_pgrp(task_pgrp(current), SIGTTOU, 1);  in tty_check_change()
526 	tty->pgrp = get_pid(task_pgrp(current));  in __proc_set_tty()
528 	tty->session = get_pid(task_session(current));  in __proc_set_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()
540 	spin_lock_irq(&current->sighand->siglock);  in proc_set_tty()
542 	spin_unlock_irq(&current->sighand->siglock);  in proc_set_tty()
550 	spin_lock_irqsave(&current->sighand->siglock, flags);  in get_current_tty()
551 	tty = tty_kref_get(current->signal->tty);  in get_current_tty()
552 	spin_unlock_irqrestore(&current->sighand->siglock, flags);  in get_current_tty()
885 	if (!current->signal->leader)  in disassociate_ctty()
905 		spin_lock_irq(&current->sighand->siglock);  in disassociate_ctty()
906 		old_pgrp = current->signal->tty_old_pgrp;  in disassociate_ctty()
907 		current->signal->tty_old_pgrp = NULL;  in disassociate_ctty()
908 		spin_unlock_irq(&current->sighand->siglock);  in disassociate_ctty()
917 	spin_lock_irq(&current->sighand->siglock);  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()
938 	spin_unlock_irq(&current->sighand->siglock);  in disassociate_ctty()
941 	session_clear_tty(task_session(current));  in disassociate_ctty()
954 	struct task_struct *tsk = current;  in no_tty()
1176 		if (signal_pending(current))  in do_tty_write()
2132 		if (signal_pending(current))  in tty_open()
2147 	spin_lock_irq(&current->sighand->siglock);  in tty_open()
2149 	    current->signal->leader &&  in tty_open()
2150 	    !current->signal->tty &&  in tty_open()
2169 	spin_unlock_irq(&current->sighand->siglock);  in tty_open()
2243 			pid = task_pid(current);  in __tty_fasync()
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()
2600 	    (real_tty->session != task_session(current)))  in tiocspgrp()
2612 	if (session_of_pgrp(pgrp) != task_session(current))  in tiocspgrp()
2642 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgsid()
2723 		if (!signal_pending(current))  in send_break()
2728 		if (signal_pending(current))  in send_break()
2830 				__func__, get_task_comm(comm, current), flags);  in tty_warn_deprecated_flags()
2875 			if (signal_pending(current))  in tty_ioctl()
2907 		if (current->signal->tty != tty)  in tty_ioctl()