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Rearrange to fix a potential crash when changing parameters with audioctl and 

the device is closed.  Reported in PR 24066.
This commit is contained in:
mycroft 2004-07-07 20:21:06 +00:00
parent 37b5b92c9f
commit d9e25c2ba9
1 changed files with 14 additions and 13 deletions
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27
sys/dev/usb/uaudio.c
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@ -1,4 +1,4 @@
/* $NetBSD: uaudio.c,v 1.71 2004/04/23 17:25:25 itojun Exp $ */
/* $NetBSD: uaudio.c,v 1.72 2004/07/07 20:21:06 mycroft Exp $ */
/*
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -44,7 +44,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uaudio.c,v 1.71 2004/04/23 17:25:25 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: uaudio.c,v 1.72 2004/07/07 20:21:06 mycroft Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -2380,13 +2380,23 @@ uaudio_set_params(void *addr, int setmode, int usemode,
|| (usemode == AUMODE_PLAY && sc->sc_playchan.pipe != NULL))
return (EBUSY);
if (usemode & AUMODE_PLAY && sc->sc_playchan.altidx != -1)
if ((usemode & AUMODE_PLAY) && sc->sc_playchan.altidx != -1)
sc->sc_alts[sc->sc_playchan.altidx].sc_busy = 0;
if (usemode & AUMODE_RECORD && sc->sc_recchan.altidx != -1)
if ((usemode & AUMODE_RECORD) && sc->sc_recchan.altidx != -1)
sc->sc_alts[sc->sc_recchan.altidx].sc_busy = 0;
for (mode = AUMODE_RECORD; mode != -1;
mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
if (usemode & mode) {
if (mode == AUMODE_PLAY) {
paltidx = i;
sc->sc_alts[i].sc_busy = 1;
} else {
raltidx = i;
sc->sc_alts[i].sc_busy = 1;
}
}
if ((setmode & mode) == 0)
continue;
@ -2514,15 +2524,6 @@ uaudio_set_params(void *addr, int setmode, int usemode,
p->sw_code = swcode;
p->factor = factor;
if (usemode & mode) {
if (mode == AUMODE_PLAY) {
paltidx = i;
sc->sc_alts[i].sc_busy = 1;
} else {
raltidx = i;
sc->sc_alts[i].sc_busy = 1;
}
}
}
if ((usemode & AUMODE_PLAY) /*&& paltidx != sc->sc_playchan.altidx*/) {