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< * $FreeBSD: head/sys/kern/tty_pty.c 90831 2002-02-18 06:07:11Z dillon $
---
> * $FreeBSD: head/sys/kern/tty_pty.c 91140 2002-02-23 11:12:57Z tanimura $
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> #include <sys/lock.h>
> #include <sys/mutex.h>
> #include <sys/sx.h>
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> PGRPSESS_SLOCK();
> PROC_LOCK(p);
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< p->p_pgrp->pg_jobc == 0 || p->p_flag & P_PPWAIT)
---
> p->p_pgrp->pg_jobc == 0 || p->p_flag & P_PPWAIT) {
> PROC_UNLOCK(p);
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> }
> PROC_UNLOCK(p);
> PGRP_LOCK(p->p_pgrp);
> PGRPSESS_SUNLOCK();
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> PGRP_UNLOCK(p->p_pgrp);
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< pgsignal(tp->t_pgrp, *(unsigned int *)data, 1);
---
> if (tp->t_pgrp != NULL) {
> PGRP_LOCK(tp->t_pgrp);
> pgsignal(tp->t_pgrp, *(unsigned int *)data, 1);
> PGRP_UNLOCK(tp->t_pgrp);
> }