ASoC: ak4613: add missing mutex_lock()

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@renesas.com>
Link: https://lore.kernel.org/r/87fsmsp9m7.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/ak4613.c b/sound/soc/codecs/ak4613.c
index 034195c..e0d9a8c 100644 (file)
--- 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);