399 	if (current->signal->tty != tty)  in __tty_check_change()
403 	pgrp = task_pgrp(current);  in __tty_check_change()
537 	tty->pgrp = get_pid(task_pgrp(current));  in __proc_set_tty()
539 	tty->session = get_pid(task_session(current));  in __proc_set_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()
552 	spin_lock_irq(&current->sighand->siglock);  in proc_set_tty()
554 	spin_unlock_irq(&current->sighand->siglock);  in proc_set_tty()
562 	spin_lock_irqsave(&current->sighand->siglock, flags);  in get_current_tty()
563 	tty = tty_kref_get(current->signal->tty);  in get_current_tty()
564 	spin_unlock_irqrestore(&current->sighand->siglock, flags);  in get_current_tty()
886 	if (!current->signal->leader)  in disassociate_ctty()
906 		spin_lock_irq(&current->sighand->siglock);  in disassociate_ctty()
907 		old_pgrp = current->signal->tty_old_pgrp;  in disassociate_ctty()
908 		current->signal->tty_old_pgrp = NULL;  in disassociate_ctty()
909 		spin_unlock_irq(&current->sighand->siglock);  in disassociate_ctty()
918 	spin_lock_irq(&current->sighand->siglock);  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()
935 	spin_unlock_irq(&current->sighand->siglock);  in disassociate_ctty()
938 	session_clear_tty(task_session(current));  in disassociate_ctty()
951 	struct task_struct *tsk = current;  in no_tty()
1173 		if (signal_pending(current))  in do_tty_write()
2095 		if (retval != -EAGAIN || signal_pending(current))  in tty_open()
2125 		if (signal_pending(current))  in tty_open()
2140 	spin_lock_irq(&current->sighand->siglock);  in tty_open()
2142 	    current->signal->leader &&  in tty_open()
2143 	    !current->signal->tty &&  in tty_open()
2162 	spin_unlock_irq(&current->sighand->siglock);  in tty_open()
2237 			pid = task_pid(current);  in __tty_fasync()
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()
2593 	    (real_tty->session != task_session(current)))  in tiocspgrp()
2605 	if (session_of_pgrp(pgrp) != task_session(current))  in tiocspgrp()
2635 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgsid()
2716 		if (!signal_pending(current))  in send_break()
2721 		if (signal_pending(current))  in send_break()
2823 				__func__, get_task_comm(comm, current), flags);  in tty_warn_deprecated_flags()
2868 			if (signal_pending(current))  in tty_ioctl()
2900 		if (current->signal->tty != tty)  in tty_ioctl()