From: Liam Girdwood <lrg@ti.com>
Date: Fri, 6 Jul 2012 16:07:00 +0000 (+0100)
Subject: ASoC: dpcm: Allow FE to be opened without valid BE routes.
X-Git-Tag: upstream/snapshot3+hdmi~6461^2~116^2~22
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3ac3f5ca91afc03587b1d2d642f126efc5be37ca;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

ASoC: dpcm: Allow FE to be opened without valid BE routes.

Some userspace will open a PCM device and then configure mixers
for routing before triggering. This patch allows userspace to do
this sequence.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 7063b8f..ef22d0b 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1955,10 +1955,8 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream)
 	fe->dpcm[stream].runtime = fe_substream->runtime;
 
 	if (dpcm_path_get(fe, stream, &list) <= 0) {
-		dev_warn(fe->dev, "asoc: %s no valid %s route\n",
+		dev_dbg(fe->dev, "asoc: %s no valid %s route\n",
 			fe->dai_link->name, stream ? "capture" : "playback");
-			mutex_unlock(&fe->card->mutex);
-			return -EINVAL;
 	}
 
 	/* calculate valid and active FE <-> BE dpcms */