diff options
| -rw-r--r-- | sys/dev/usb/uaudio.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/sys/dev/usb/uaudio.c b/sys/dev/usb/uaudio.c index 4c83bb068c4..5753b33c408 100644 --- a/sys/dev/usb/uaudio.c +++ b/sys/dev/usb/uaudio.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uaudio.c,v 1.87 2010/07/31 02:52:16 jakemsr Exp $ */ +/* $OpenBSD: uaudio.c,v 1.88 2010/08/18 22:53:10 jakemsr Exp $ */ /* $NetBSD: uaudio.c,v 1.90 2004/10/29 17:12:53 kent Exp $ */ /* @@ -591,20 +591,18 @@ int uaudio_detach(struct device *self, int flags) { struct uaudio_softc *sc = (struct uaudio_softc *)self; - struct chan *pchan = &sc->sc_playchan; - struct chan *rchan = &sc->sc_recchan; - int ms, rv = 0; + int rv = 0; /* - * sc_alts may be NULL if uaudio_identify_as() failed + * sc_alts may be NULL if uaudio_identify_as() failed, in + * which case uaudio_attach() didn't finish and there's + * nothing to detach. */ if (sc->sc_alts == NULL) - return rv; + return (rv); /* Wait for outstanding requests to complete. */ - ms = max(sc->sc_alts[pchan->altidx].sc_busy ? pchan->reqms : 0, - sc->sc_alts[rchan->altidx].sc_busy ? rchan->reqms : 0); - usbd_delay_ms(sc->sc_udev, UAUDIO_NCHANBUFS * ms); + uaudio_drain(sc); if (sc->sc_audiodev != NULL) rv = config_detach(sc->sc_audiodev, flags); @@ -2237,11 +2235,13 @@ uaudio_drain(void *addr) struct uaudio_softc *sc = addr; struct chan *pchan = &sc->sc_playchan; struct chan *rchan = &sc->sc_recchan; - int ms; + int ms = 0; /* Wait for outstanding requests to complete. */ - ms = max(sc->sc_alts[pchan->altidx].sc_busy ? pchan->reqms : 0, - sc->sc_alts[rchan->altidx].sc_busy ? rchan->reqms : 0); + if (pchan->altidx != -1 && sc->sc_alts[pchan->altidx].sc_busy) + ms = max(ms, pchan->reqms); + if (rchan->altidx != -1 && sc->sc_alts[rchan->altidx].sc_busy) + ms = max(ms, rchan->reqms); usbd_delay_ms(sc->sc_udev, UAUDIO_NCHANBUFS * ms); return (0); |