[PATCH 1/6] ASoC: ak4613: add missing mutex_lock()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

We need to use mutex_lock() for priv->cnt / priv->iface,
but we are missing it at ak4613_dai_startup().
This patch adds missing mutex_lock() for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/codecs/ak4613.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/ak4613.c b/sound/soc/codecs/ak4613.c
index 034195c83bd7..e0d9a8c58e10 100644
--- a/sound/soc/codecs/ak4613.c
+++ b/sound/soc/codecs/ak4613.c
@@ -304,7 +304,9 @@ static int ak4613_dai_startup(struct snd_pcm_substream *substream,
 	struct snd_soc_component *component = dai->component;
 	struct ak4613_priv *priv = snd_soc_component_get_drvdata(component);
 
+	mutex_lock(&priv->lock);
 	priv->cnt++;
+	mutex_unlock(&priv->lock);
 
 	ak4613_hw_constraints(priv, substream->runtime);
 
-- 
2.25.1