File 0004-pcm-rate-fix-hw_ptr-exceed-the-boundary.patch of Package alsa

From 035f196bcdc1e9903ed52ad1859dc23d3aa74e72 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@freescale.com>
Date: Mon, 14 Jul 2014 16:55:48 +0800
Subject: [PATCH 04/14] pcm: rate: fix hw_ptr exceed the boundary

For long time test case, the hw_ptr will exceed the boundary, then cause
the avail size wrong.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 src/pcm/pcm_rate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 7f667d4c6a52..2563d824ddb8 100644
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -574,6 +574,8 @@ static inline void snd_pcm_rate_sync_hwptr(snd_pcm_t *pcm)
 	rate->hw_ptr =
 		(slave_hw_ptr / rate->gen.slave->period_size) * pcm->period_size +
 		rate->ops.input_frames(rate->obj, slave_hw_ptr % rate->gen.slave->period_size);
+
+	rate->hw_ptr %= pcm->boundary;
 }
 
 static int snd_pcm_rate_hwsync(snd_pcm_t *pcm)
-- 
2.0.1