401 	if (!tty->pgrp) {  in tty_check_change()
405 	if (task_pgrp(current) == tty->pgrp)  in tty_check_change()
525 	put_pid(tty->pgrp);  in __proc_set_tty()
526 	tty->pgrp = get_pid(task_pgrp(current));  in __proc_set_tty()
627 			tty_pgrp = get_pid(tty->pgrp);  in tty_signal_session_leader()
628 			if (tty->pgrp)  in tty_signal_session_leader()
629 				p->signal->tty_old_pgrp = get_pid(tty->pgrp);  in tty_signal_session_leader()
723 	put_pid(tty->pgrp);  in __tty_hangup()
725 	tty->pgrp = NULL;  in __tty_hangup()
926 		put_pid(tty->pgrp);  in disassociate_ctty()
928 		tty->pgrp = NULL;  in disassociate_ctty()
1647 	put_pid(tty->pgrp);  in release_one_tty()
2239 		if (tty->pgrp) {  in __tty_fasync()
2240 			pid = tty->pgrp;  in __tty_fasync()
2335 	struct pid *pgrp;  in tty_do_resize()  local
2343 	pgrp = tty_get_pgrp(tty);  in tty_do_resize()
2344 	if (pgrp)  in tty_do_resize()
2345 		kill_pgrp(pgrp, SIGWINCH, 1);  in tty_do_resize()
2346 	put_pid(pgrp);  in tty_do_resize()
2516 	struct pid *pgrp;  in tty_get_pgrp()  local
2519 	pgrp = get_pid(tty->pgrp);  in tty_get_pgrp()
2522 	return pgrp;  in tty_get_pgrp()
2533 static struct pid *session_of_pgrp(struct pid *pgrp)  in session_of_pgrp()  argument
2538 	p = pid_task(pgrp, PIDTYPE_PGID);  in session_of_pgrp()
2540 		p = pid_task(pgrp, PIDTYPE_PID);  in session_of_pgrp()
2589 	struct pid *pgrp;  in tiocspgrp()  local
2607 	pgrp = find_vpid(pgrp_nr);  in tiocspgrp()
2609 	if (!pgrp)  in tiocspgrp()
2612 	if (session_of_pgrp(pgrp) != task_session(current))  in tiocspgrp()
2616 	put_pid(real_tty->pgrp);  in tiocspgrp()
2617 	real_tty->pgrp = get_pid(pgrp);  in tiocspgrp()
3156 	tty->pgrp = NULL;  in alloc_tty_struct()