1 files changed, 6 insertions, 2 deletions

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index c038b3e04398..ffbe6df3453a 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -26,6 +26,7 @@
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/irq.h>
+#include <linux/mutex.h>
 #include <sound/core.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
@@ -123,6 +124,7 @@ struct wm8903_priv {
         int sysclk;
         int irq;
 
+        struct mutex lock;
         int fs;
         int deemph;
 
@@ -457,7 +459,7 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
         if (deemph > 1)
                 return -EINVAL;
 
-        mutex_lock(&codec->mutex);
+        mutex_lock(&wm8903->lock);
         if (wm8903->deemph != deemph) {
                 wm8903->deemph = deemph;
 
@@ -465,7 +467,7 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
 
                 ret = 1;
         }
-        mutex_unlock(&codec->mutex);
+        mutex_unlock(&wm8903->lock);
 
         return ret;
 }
@@ -2023,6 +2025,8 @@ static int wm8903_i2c_probe(struct i2c_client *i2c,
                               GFP_KERNEL);
         if (wm8903 == NULL)
                 return -ENOMEM;
+
+        mutex_init(&wm8903->lock);
         wm8903->dev = &i2c->dev;
 
         wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);