diff --git a/sys/dev/sound/midi/midi.c b/sys/dev/sound/midi/midi.c index e14a2855740675..cca7b93abf5fce 100644 --- a/sys/dev/sound/midi/midi.c +++ b/sys/dev/sound/midi/midi.c @@ -658,21 +658,19 @@ midi_poll(struct cdev *i_dev, int events, struct thread *td) mtx_lock(&m->lock); mtx_lock(&m->qlock); - if (events & (POLLIN | POLLRDNORM)) + if (events & (POLLIN | POLLRDNORM)) { if (!MIDIQ_EMPTY(m->inq)) - events |= events & (POLLIN | POLLRDNORM); - - if (events & (POLLOUT | POLLWRNORM)) - if (MIDIQ_AVAIL(m->outq) < m->hiwat) - events |= events & (POLLOUT | POLLWRNORM); - - if (revents == 0) { - if (events & (POLLIN | POLLRDNORM)) + revents |= events & (POLLIN | POLLRDNORM); + else selrecord(td, &m->rsel); - - if (events & (POLLOUT | POLLWRNORM)) + } + if (events & (POLLOUT | POLLWRNORM)) { + if (MIDIQ_AVAIL(m->outq) < m->hiwat) + revents |= events & (POLLOUT | POLLWRNORM); + else selrecord(td, &m->wsel); } + mtx_unlock(&m->lock); mtx_unlock(&m->qlock);