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Fix botches in rev 1.185 (kent-audio1 merge) which cause buffer overrun 

and "tlb_exception: no copyin/out fault hander" panic in
audio_fill_silence() after audio playback on dreamcast.

The problem is tracked and fix is provieded by Ryo SHIMIZU,
who is the auther of aica(4) audio driver for dreamcast.
This commit is contained in:
tsutsui 2010-11-20 18:03:49 +00:00
parent 4eca61515e
commit e0a14f3564
1 changed files with 4 additions and 4 deletions
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8
sys/dev/audio.c
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@ -1,4 +1,4 @@
/* $NetBSD: audio.c,v 1.251 2010/02/24 22:37:56 dyoung Exp $ */
/* $NetBSD: audio.c,v 1.252 2010/11/20 18:03:49 tsutsui 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 1.251 2010/02/24 22:37:56 dyoung Exp $");
__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.252 2010/11/20 18:03:49 tsutsui Exp $");
#include "audio.h"
#if NAUDIO > 0
@ -2778,8 +2778,8 @@ audio_pint(void *v)
/* Clear next block so we keep ahead of the DMA. */
used = audio_stream_get_used(&cb->s);
if (used + cc < cb->s.end - cb->s.start)
audio_pint_silence(sc, cb, inp, blksize);
if (used + blksize < cb->s.end - cb->s.start)
audio_pint_silence(sc, cb, cb->s.inp, blksize);
}
}