396 	struct pid *pgrp, *tty_pgrp;  in __tty_check_change()  local
403 	pgrp = task_pgrp(current);  in __tty_check_change()
406 	tty_pgrp = tty->pgrp;  in __tty_check_change()
409 	if (tty_pgrp && pgrp != tty->pgrp) {  in __tty_check_change()
416 			kill_pgrp(pgrp, sig, 1);  in __tty_check_change()
536 	put_pid(tty->pgrp);  in __proc_set_tty()
537 	tty->pgrp = get_pid(task_pgrp(current));  in __proc_set_tty()
639 			tty_pgrp = get_pid(tty->pgrp);  in tty_signal_session_leader()
640 			if (tty->pgrp)  in tty_signal_session_leader()
641 				p->signal->tty_old_pgrp = get_pid(tty->pgrp);  in tty_signal_session_leader()
735 	put_pid(tty->pgrp);  in __tty_hangup()
737 	tty->pgrp = NULL;  in __tty_hangup()
927 		put_pid(tty->pgrp);  in disassociate_ctty()
929 		tty->pgrp = NULL;  in disassociate_ctty()
1642 	put_pid(tty->pgrp);  in release_one_tty()
2233 		if (tty->pgrp) {  in __tty_fasync()
2234 			pid = tty->pgrp;  in __tty_fasync()
2329 	struct pid *pgrp;  in tty_do_resize()  local
2337 	pgrp = tty_get_pgrp(tty);  in tty_do_resize()
2338 	if (pgrp)  in tty_do_resize()
2339 		kill_pgrp(pgrp, SIGWINCH, 1);  in tty_do_resize()
2340 	put_pid(pgrp);  in tty_do_resize()
2510 	struct pid *pgrp;  in tty_get_pgrp()  local
2513 	pgrp = get_pid(tty->pgrp);  in tty_get_pgrp()
2516 	return pgrp;  in tty_get_pgrp()
2527 static struct pid *session_of_pgrp(struct pid *pgrp)  in session_of_pgrp()  argument
2532 	p = pid_task(pgrp, PIDTYPE_PGID);  in session_of_pgrp()
2534 		p = pid_task(pgrp, PIDTYPE_PID);  in session_of_pgrp()
2583 	struct pid *pgrp;  in tiocspgrp()  local
2600 	pgrp = find_vpid(pgrp_nr);  in tiocspgrp()
2602 	if (!pgrp)  in tiocspgrp()
2605 	if (session_of_pgrp(pgrp) != task_session(current))  in tiocspgrp()
2609 	put_pid(real_tty->pgrp);  in tiocspgrp()
2610 	real_tty->pgrp = get_pid(pgrp);  in tiocspgrp()
3149 	tty->pgrp = NULL;  in alloc_tty_struct()