diff options
Diffstat (limited to 'sys/dev/usb/ucom.c')
| -rw-r--r-- | sys/dev/usb/ucom.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/dev/usb/ucom.c b/sys/dev/usb/ucom.c index 3e138808e8a..6e29bf3a121 100644 --- a/sys/dev/usb/ucom.c +++ b/sys/dev/usb/ucom.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ucom.c,v 1.62 2013/11/15 08:25:31 pirofti Exp $ */ +/* $OpenBSD: ucom.c,v 1.63 2014/02/03 20:59:05 mpi Exp $ */ /* $NetBSD: ucom.c,v 1.49 2003/01/01 00:10:25 thorpej Exp $ */ /* @@ -491,6 +491,12 @@ ucom_do_open(dev_t dev, int flag, int mode, struct proc *p) SET(tp->t_state, TS_WOPEN); error = ttysleep(tp, &tp->t_rawq, TTIPRI | PCATCH, ttopen, 0); + + if (usbd_is_dying(sc->sc_uparent)) { + splx(s); + return (EIO); + } + /* * If TS_WOPEN has been reset, that means the * cua device has been closed. We don't want |