ASoC: wm8753: Convert to devm_kzalloc()

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 21ed75d..59c28db 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1557,7 +1557,8 @@
 	struct wm8753_priv *wm8753;
 	int ret;
 
-	wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
+	wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv),
+			      GFP_KERNEL);
 	if (wm8753 == NULL)
 		return -ENOMEM;
 
@@ -1580,7 +1581,6 @@
 err_regmap:
 	regmap_exit(wm8753->regmap);
 err:
-	kfree(wm8753);
 	return ret;
 }
 
@@ -1612,7 +1612,8 @@
 	struct wm8753_priv *wm8753;
 	int ret;
 
-	wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
+	wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv),
+			      GFP_KERNEL);
 	if (wm8753 == NULL)
 		return -ENOMEM;
 
@@ -1632,10 +1633,10 @@
 		dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
 		goto err_regmap;
 	}
+
 err_regmap:
 	regmap_exit(wm8753->regmap);
 err:
-	kfree(wm8753);
 	return ret;
 }
 
@@ -1645,7 +1646,6 @@
 
 	snd_soc_unregister_codec(&client->dev);
 	regmap_exit(wm8753->regmap);
-	kfree(wm8753);
 	return 0;
 }