File 0025-dmix-actually-rewind-when-running-or-being-drained.patch of Package alsa

From 9a56a673a6cd7343a9345921e2b1cbbb43fb725f Mon Sep 17 00:00:00 2001
From: "Alexander E. Patrakov" <patrakov@gmail.com>
Date: Sun, 14 Sep 2014 00:30:13 +0600
Subject: [PATCH] dmix: actually rewind when running or being drained

Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 src/pcm/pcm_dmix.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/pcm/pcm_dmix.c b/src/pcm/pcm_dmix.c
index 7c535093ea0f..73cbe3f8d0b2 100644
--- a/src/pcm/pcm_dmix.c
+++ b/src/pcm/pcm_dmix.c
@@ -669,11 +669,15 @@ static snd_pcm_sframes_t snd_pcm_dmix_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t f
 	snd_pcm_direct_t *dmix = pcm->private_data;
 	snd_pcm_uframes_t slave_appl_ptr, slave_size;
 	snd_pcm_uframes_t appl_ptr, size, transfer, result;
+	int err;
 	const snd_pcm_channel_area_t *src_areas, *dst_areas;
 
 	if (dmix->state == SND_PCM_STATE_RUNNING ||
-	    dmix->state == SND_PCM_STATE_DRAINING)
-	    	return snd_pcm_dmix_hwsync(pcm);
+	    dmix->state == SND_PCM_STATE_DRAINING) {
+		err = snd_pcm_dmix_hwsync(pcm);
+		if (err < 0)
+			return err;
+	}
 
 	if (dmix->last_appl_ptr < dmix->appl_ptr)
 		size = dmix->appl_ptr - dmix->last_appl_ptr;
-- 
2.1.2