diff options
Diffstat (limited to 'sys/kern/tty_pty.c')
| -rw-r--r-- | sys/kern/tty_pty.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sys/kern/tty_pty.c b/sys/kern/tty_pty.c index 9bc2360..7d6e736 100644 --- a/sys/kern/tty_pty.c +++ b/sys/kern/tty_pty.c @@ -234,25 +234,27 @@ ptsread(dev, uio, flag) struct proc *p = td->td_proc; register struct tty *tp = dev->si_tty; register struct pt_ioctl *pti = dev->si_drv1; + struct pgrp *pg; int error = 0; again: if (pti->pt_flags & PF_REMOTE) { while (isbackground(p, tp)) { - PGRPSESS_SLOCK(); + sx_slock(&proctree_lock); PROC_LOCK(p); if (SIGISMEMBER(p->p_sigignore, SIGTTIN) || SIGISMEMBER(p->p_sigmask, SIGTTIN) || p->p_pgrp->pg_jobc == 0 || p->p_flag & P_PPWAIT) { PROC_UNLOCK(p); - PGRPSESS_SUNLOCK(); + sx_sunlock(&proctree_lock); return (EIO); } + pg = p->p_pgrp; PROC_UNLOCK(p); - PGRP_LOCK(p->p_pgrp); - PGRPSESS_SUNLOCK(); - pgsignal(p->p_pgrp, SIGTTIN, 1); - PGRP_UNLOCK(p->p_pgrp); + PGRP_LOCK(pg); + sx_sunlock(&proctree_lock); + pgsignal(pg, SIGTTIN, 1); + PGRP_UNLOCK(pg); error = ttysleep(tp, &lbolt, TTIPRI | PCATCH, "ptsbg", 0); if (error) |
