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In mixer_remove() it's better to check if lwp is not NULL before trying

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to access a children node of it.

Fixes PR 32823, by Yours Truly. I guess I should read the code before
sending a PR.
This commit is contained in:
rpaulo 2006-02-25 11:32:51 +00:00
parent 4ab9075a6b
commit f714333c4c
1 changed files with 8 additions and 3 deletions
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11
sys/dev/audio.c
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@ -1,4 +1,4 @@
/* $NetBSD: audio.c,v 1.199 2005/12/24 20:27:29 perry Exp $ */
/* $NetBSD: audio.c,v 1.200 2006/02/25 11:32:51 rpaulo Exp $ */
/*
* Copyright (c) 1991-1993 Regents of the University of California.
@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.199 2005/12/24 20:27:29 perry Exp $");
__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.200 2006/02/25 11:32:51 rpaulo Exp $");
#include "audio.h"
#if NAUDIO > 0
@ -3534,7 +3534,12 @@ static void
mixer_remove(struct audio_softc *sc, struct lwp *l)
{
struct mixer_asyncs **pm, *m;
struct proc *p = l->l_proc;
struct proc *p;
if (l == NULL)
return;
p = l->l_proc;
for (pm = &sc->sc_async_mixer; *pm; pm = &(*pm)->next) {
if ((*pm)->proc == p) {