File 0033-pcm-fix-snd_pcm_avail_delay-function.patch of Package alsa

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File 0033-pcm-fix-snd_pcm_avail_delay-function.patch of Package alsa (Revision c4c4269ecc7c2758a5c139309fe9b7c0)

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From ba9332e9192814a5431a3a2505d25d74a9232124 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 18 Nov 2010 09:27:07 +0100
Subject: [PATCH 07/10] pcm: fix snd_pcm_avail_delay() function

For capture stream, the delay must be obtained as last, but we need to
update the ring buffer pointers for the avail_update call. So, rearrange
the code a bit and add hwsync call as first.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 src/pcm/pcm.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index f378779..7409943 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -2470,18 +2470,22 @@ int snd_pcm_avail_delay(snd_pcm_t *pcm,
 			snd_pcm_sframes_t *delayp)
 {
 	snd_pcm_sframes_t sf;
+	int err;
 
 	assert(pcm && availp && delayp);
 	if (CHECK_SANITY(! pcm->setup)) {
 		SNDMSG("PCM not set up");
 		return -EIO;
 	}
-	sf = pcm->fast_ops->delay(pcm->fast_op_arg, delayp);
-	if (sf < 0)
-		return (int)sf;
+	err = pcm->fast_ops->hwsync(pcm->fast_op_arg);
+	if (err < 0)
+		return err;
 	sf = pcm->fast_ops->avail_update(pcm->fast_op_arg);
 	if (sf < 0)
 		return (int)sf;
+	err = pcm->fast_ops->delay(pcm->fast_op_arg, delayp);
+	if (err < 0)
+		return err;
 	*availp = sf;
 	return 0;
 }
-- 
1.7.3.1

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File 0033-pcm-fix-snd_pcm_avail_delay-function.patch of Package alsa (Revision c4c4269ecc7c2758a5c139309fe9b7c0)

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