[alsa-devel] [PATCH] pcm: rate: fix hw_ptr exceed the boundary

[Shengjiu Wang]

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 at freescale.com>
---
 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 7f667d4..2563d82 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)
-- 
1.7.9.5