diff options
Diffstat (limited to 'sys/dev/usb/uaudio.c')
| -rw-r--r-- | sys/dev/usb/uaudio.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/sys/dev/usb/uaudio.c b/sys/dev/usb/uaudio.c index 68bfd7b1cc5..b43b5dab7a5 100644 --- a/sys/dev/usb/uaudio.c +++ b/sys/dev/usb/uaudio.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uaudio.c,v 1.19 2004/07/08 22:18:44 deraadt Exp $ */ +/* $OpenBSD: uaudio.c,v 1.20 2004/08/30 03:06:48 drahn Exp $ */ /* $NetBSD: uaudio.c,v 1.67 2003/05/03 18:11:41 wiz Exp $ */ /* @@ -573,14 +573,19 @@ uaudio_mixer_add_ctl(struct uaudio_softc *sc, struct mixerctl *mc) { int res; size_t len = sizeof(*mc) * (sc->sc_nctls + 1); - struct mixerctl *nmc = sc->sc_nctls == 0 ? - malloc(len, M_USBDEV, M_NOWAIT) : - realloc(sc->sc_ctls, len, M_USBDEV, M_NOWAIT); + struct mixerctl *nmc = malloc(len, M_USBDEV, M_NOWAIT); if (nmc == NULL) { printf("uaudio_mixer_add_ctl: no memory\n"); return; } + + /* Copy old data, if there was any */ + if (sc->sc_nctls != 0) { + bcopy(sc->sc_ctls, nmc, sizeof(*mc) * (sc->sc_nctls)); + free(sc->sc_ctls, M_USBDEV); + } + sc->sc_ctls = nmc; mc->delta = 0; @@ -1079,15 +1084,19 @@ void uaudio_add_alt(struct uaudio_softc *sc, struct as_info *ai) { size_t len = sizeof(*ai) * (sc->sc_nalts + 1); - struct as_info *nai = (sc->sc_nalts == 0) ? - malloc(len, M_USBDEV, M_NOWAIT) : - realloc(sc->sc_alts, len, M_USBDEV, M_NOWAIT); + struct as_info *nai = malloc(len, M_USBDEV, M_NOWAIT); if (nai == NULL) { printf("uaudio_add_alt: no memory\n"); return; } + /* Copy old data, if there was any */ + if (sc->sc_nalts != 0) { + bcopy(sc->sc_alts, nai, sizeof(*ai) * (sc->sc_nalts)); + free(sc->sc_alts, M_USBDEV); + } + sc->sc_alts = nai; DPRINTFN(2,("uaudio_add_alt: adding alt=%d, enc=%d\n", ai->alt, ai->encoding)); |