ASoC: Convert WM8750 to devm_kzalloc()

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8750.c

@@ -744,7 +744,8 @@ static int __devinit wm8750_spi_probe(struct spi_device *spi)
 	struct wm8750_priv *wm8750;
 	int ret;
 
-	wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
+	wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
+			      GFP_KERNEL);
 	if (wm8750 == NULL)
 		return -ENOMEM;
 
@@ -753,15 +754,12 @@ static int __devinit wm8750_spi_probe(struct spi_device *spi)
 
 	ret = snd_soc_register_codec(&spi->dev,
 			&soc_codec_dev_wm8750, &wm8750_dai, 1);
-	if (ret < 0)
-		kfree(wm8750);
 	return ret;
 }
 
 static int __devexit wm8750_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
-	kfree(spi_get_drvdata(spi));
 	return 0;
 }
 
@@ -791,7 +789,8 @@ static __devinit int wm8750_i2c_probe(struct i2c_client *i2c,
 	struct wm8750_priv *wm8750;
 	int ret;
 
-	wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
+	wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
+			      GFP_KERNEL);
 	if (wm8750 == NULL)
 		return -ENOMEM;
 
@@ -800,15 +799,12 @@ static __devinit int wm8750_i2c_probe(struct i2c_client *i2c,
 
 	ret =  snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_wm8750, &wm8750_dai, 1);
-	if (ret < 0)
-		kfree(wm8750);
 	return ret;
 }
 
 static __devexit int wm8750_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
-	kfree(i2c_get_clientdata(client));
 	return 0;
 }