Attachment #224891 for bug #255816




ttydev_write(struct cdev *dev, struct uio *uio, int ioflag)
{
	struct tty *tp = dev->si_drv1;
	int defer, error;

	error = ttydev_enter(tp);
	if (error)

		}

		tp->t_flags |= TF_BUSY_OUT;
		defer = sigdeferstop(SIGDEFERSTOP_EINTR);
		error = ttydisc_write(tp, uio, ioflag);
		sigallowstop(defer);
		tp->t_flags &= ~TF_BUSY_OUT;
		cv_signal(&tp->t_outserwait);
	}

Return to bug 255816

Lines 525-531 static int Link Here

(-)b/sys/kern/tty.c (-1 / +3 lines)
525	ttydev_write(struct cdev dev, struct uio uio, int ioflag)	525	ttydev_write(struct cdev dev, struct uio uio, int ioflag)
526	{	526	{
527	struct tty *tp = dev->si_drv1;	527	struct tty *tp = dev->si_drv1;
528	int error;	528	int defer, error;
529		529
530	error = ttydev_enter(tp);	530	error = ttydev_enter(tp);
531	if (error)	531	if (error)
Lines 549-555 ttydev_write(struct cdev dev, struct uio uio, int ioflag) Link Here
549	}	549	}
550		550
551	tp->t_flags \|= TF_BUSY_OUT;	551	tp->t_flags \|= TF_BUSY_OUT;
		552	defer = sigdeferstop(SIGDEFERSTOP_EINTR);
552	error = ttydisc_write(tp, uio, ioflag);	553	error = ttydisc_write(tp, uio, ioflag);
		554	sigallowstop(defer);
553	tp->t_flags &= ~TF_BUSY_OUT;	555	tp->t_flags &= ~TF_BUSY_OUT;
554	cv_signal(&tp->t_outserwait);	556	cv_signal(&tp->t_outserwait);
555	}	557	}