diff options
Diffstat (limited to 'sys/dev/sio/sio.c')
-rw-r--r-- | sys/dev/sio/sio.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c index e5115e8..1d8bf01 100644 --- a/sys/dev/sio/sio.c +++ b/sys/dev/sio/sio.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)com.c 7.5 (Berkeley) 5/16/91 - * $Id: sio.c,v 1.68 1995/02/26 02:30:18 bde Exp $ + * $Id: sio.c,v 1.69 1995/02/28 00:20:54 pst Exp $ */ #include "sio.h" @@ -1531,12 +1531,16 @@ repeat: * Only have it in standard one now. */ && linesw[tp->t_line].l_rint == ttyinput) { + int queue_full = 0; + if ((tp->t_iflag & IXOFF) && tp->t_cc[VSTOP] != _POSIX_VDISABLE && - putc(tp->t_cc[VSTOP], &tp->t_outq) == 0 || + (queue_full = putc(tp->t_cc[VSTOP], &tp->t_outq)) == 0 || (com->state & CS_RTS_IFLOW)) { tp->t_state |= TS_TBLOCK; ttstart(tp); + if (queue_full) /* try again */ + tp->t_state &= ~TS_TBLOCK; } } /* |