ASoC: Convert ak4642 to devm_kzalloc()

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/ak4642.c

@@ -525,7 +525,8 @@ static __devinit int ak4642_i2c_probe(struct i2c_client *i2c,
 	struct ak4642_priv *ak4642;
 	int ret;
 
-	ak4642 = kzalloc(sizeof(struct ak4642_priv), GFP_KERNEL);
+	ak4642 = devm_kzalloc(&i2c->dev, sizeof(struct ak4642_priv),
+			      GFP_KERNEL);
 	if (!ak4642)
 		return -ENOMEM;
 
@@ -535,15 +536,12 @@ static __devinit int ak4642_i2c_probe(struct i2c_client *i2c,
 	ret =  snd_soc_register_codec(&i2c->dev,
 				(struct snd_soc_codec_driver *)id->driver_data,
 				&ak4642_dai, 1);
-	if (ret < 0)
-		kfree(ak4642);
 	return ret;
 }
 
 static __devexit int ak4642_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
-	kfree(i2c_get_clientdata(client));
 	return 0;
 }