From: Steve Chen <schen@mvista.com>
Date: Sat, 21 Feb 2009 14:05:04 +0000 (-0600)
Subject: ALSA: fix excessive background noise introduced by OSS emulation rate shrink
X-Git-Tag: v2.6.29-rc7~51^2^2~1
X-Git-Url: https://git.kernel.dk/?p=linux-2.6-block.git;a=commitdiff_plain;h=5370d96f85962769ea3df3a81cc885f257c51589;ds=sidebyside

ALSA: fix excessive background noise introduced by OSS emulation rate shrink

Incorrect variable was used to get the next sample which caused S2
to be stuck with the same value resulting in loud background noise.

Signed-off-by: Steve Chen <schen at mvista.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c
index a466443c4a26..2fa9299a440d 100644
--- a/sound/core/oss/rate.c
+++ b/sound/core/oss/rate.c
@@ -157,7 +157,7 @@ static void resample_shrink(struct snd_pcm_plugin *plugin,
 		while (dst_frames1 > 0) {
 			S1 = S2;
 			if (src_frames1-- > 0) {
-				S1 = *src;
+				S2 = *src;
 				src += src_step;
 			}
 			if (pos & ~R_MASK) {