diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/sio/sio.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c index ca59986..65b1029 100644 --- a/sys/dev/sio/sio.c +++ b/sys/dev/sio/sio.c @@ -2583,16 +2583,20 @@ siocnputc(struct consdev *cd, int c) } s = spltty(); need_unlock = 0; - if (sio_inited == 2 && !mtx_owned(&sio_lock)) { - mtx_lock_spin(&sio_lock); - need_unlock = 1; + if (!kdb_active) { + if (sio_inited == 2 && !mtx_owned(&sio_lock)) { + mtx_lock_spin(&sio_lock); + need_unlock = 1; + } } siocnopen(&sp, iobase, speed); siocntxwait(iobase); outb(iobase + com_data, c); siocnclose(&sp, iobase); - if (need_unlock) - mtx_unlock_spin(&sio_lock); + if (!kdb_active) { + if (need_unlock) + mtx_unlock_spin(&sio_lock); + } splx(s); } |
