ASoC: Convert wm9081 driver to use devm_kzalloc()

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index ba12690..8a4b970 100644
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -1361,7 +1361,8 @@
 	unsigned int reg;
 	int ret;
 
-	wm9081 = kzalloc(sizeof(struct wm9081_priv), GFP_KERNEL);
+	wm9081 = devm_kzalloc(&i2c->dev, sizeof(struct wm9081_priv),
+			      GFP_KERNEL);
 	if (wm9081 == NULL)
 		return -ENOMEM;
 
@@ -1405,7 +1406,6 @@
 err_regmap:
 	regmap_exit(wm9081->regmap);
 err:
-	kfree(wm9081);
 
 	return ret;
 }
@@ -1416,7 +1416,6 @@
 
 	snd_soc_unregister_codec(&client->dev);
 	regmap_exit(wm9081->regmap);
-	kfree(i2c_get_clientdata(client));
 	return 0;
 }