Module Name: src
Committed By: nat
Date: Wed Mar 29 06:24:22 UTC 2017
Modified Files:
src/sys/dev: audio.c
Log Message:
Fix channel assignment for multiple channels.
This fixes a problem if two or more channels are opened and the first
(any but last channel) is closed and new channels are opened.
To generate a diff of this commit:
cvs rdiff -u -r1.318 -r1.319 src/sys/dev/audio.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/audio.c
diff -u src/sys/dev/audio.c:1.318 src/sys/dev/audio.c:1.319
--- src/sys/dev/audio.c:1.318 Mon Mar 27 23:25:24 2017
+++ src/sys/dev/audio.c Wed Mar 29 06:24:22 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: audio.c,v 1.318 2017/03/27 23:25:24 nat Exp $ */
+/* $NetBSD: audio.c,v 1.319 2017/03/29 06:24:22 nat Exp $ */
/*-
* Copyright (c) 2016 Nathanial Sloss <[email protected]>
@@ -148,7 +148,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.318 2017/03/27 23:25:24 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.319 2017/03/29 06:24:22 nat Exp $");
#include "audio.h"
#if NAUDIO > 0
@@ -2084,9 +2084,14 @@ audio_open(dev_t dev, struct audio_softc
hw = sc->hw_if;
if (hw == NULL)
return ENXIO;
- n = 0;
- SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries)
- n++;
+ n = 1;
+ SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
+ if (chan == SIMPLEQ_FIRST(&sc->sc_audiochan))
+ continue;
+ n = chan->chan + 1;
+ }
+ if (n < 0)
+ return ENOMEM;
chan = kmem_zalloc(sizeof(struct audio_chan), KM_SLEEP);
vc = kmem_zalloc(sizeof(struct virtual_channel), KM_SLEEP);
