ASoC: wm9081: Use devm_regmap_init_i2c()

devm_regmap_init_i2c() is device managed and makes error
handling and code cleanup simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm9081.c

@@ -1341,28 +1341,27 @@ static __devinit int wm9081_i2c_probe(struct i2c_client *i2c,
 
 	i2c_set_clientdata(i2c, wm9081);
 
-	wm9081->regmap = regmap_init_i2c(i2c, &wm9081_regmap);
+	wm9081->regmap = devm_regmap_init_i2c(i2c, &wm9081_regmap);
 	if (IS_ERR(wm9081->regmap)) {
 		ret = PTR_ERR(wm9081->regmap);
 		dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
-		goto err;
+		return ret;
 	}
 
 	ret = regmap_read(wm9081->regmap, WM9081_SOFTWARE_RESET, &reg);
 	if (ret != 0) {
 		dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
-		goto err_regmap;
+		return ret;
 	}
 	if (reg != 0x9081) {
 		dev_err(&i2c->dev, "Device is not a WM9081: ID=0x%x\n", reg);
-		ret = -EINVAL;
-		goto err_regmap;
+		return -EINVAL;
 	}
 
 	ret = wm9081_reset(wm9081->regmap);
 	if (ret < 0) {
 		dev_err(&i2c->dev, "Failed to issue reset\n");
-		goto err_regmap;
+		return ret;
 	}
 
 	if (dev_get_platdata(&i2c->dev))
@@ -1382,23 +1381,14 @@ static __devinit int wm9081_i2c_probe(struct i2c_client *i2c,
 	ret = snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_wm9081, &wm9081_dai, 1);
 	if (ret < 0)
-		goto err_regmap;
+		return ret;
 
 	return 0;
-
-err_regmap:
-	regmap_exit(wm9081->regmap);
-err:
-
-	return ret;
 }
 
 static __devexit int wm9081_i2c_remove(struct i2c_client *client)
 {
-	struct wm9081_priv *wm9081 = i2c_get_clientdata(client);
-
 	snd_soc_unregister_codec(&client->dev);
-	regmap_exit(wm9081->regmap);
 	return 0;
 }