iio: dac: ad5360: Use devm_* APIs

devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/dac/ad5360.c

@@ -459,7 +459,7 @@ static int ad5360_probe(struct spi_device *spi)
 	unsigned int i;
 	int ret;
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL) {
 		dev_err(&spi->dev, "Failed to allocate iio device\n");
 		return  -ENOMEM;
@@ -480,13 +480,13 @@ static int ad5360_probe(struct spi_device *spi)
 	ret = ad5360_alloc_channels(indio_dev);
 	if (ret) {
 		dev_err(&spi->dev, "Failed to allocate channel spec: %d\n", ret);
-		goto error_free;
+		return ret;
 	}
 
 	for (i = 0; i < st->chip_info->num_vrefs; ++i)
 		st->vref_reg[i].supply = ad5360_vref_name[i];
 
-	ret = regulator_bulk_get(&st->spi->dev, st->chip_info->num_vrefs,
+	ret = devm_regulator_bulk_get(&st->spi->dev, st->chip_info->num_vrefs,
 		st->vref_reg);
 	if (ret) {
 		dev_err(&spi->dev, "Failed to request vref regulators: %d\n", ret);
@@ -496,7 +496,7 @@ static int ad5360_probe(struct spi_device *spi)
 	ret = regulator_bulk_enable(st->chip_info->num_vrefs, st->vref_reg);
 	if (ret) {
 		dev_err(&spi->dev, "Failed to enable vref regulators: %d\n", ret);
-		goto error_free_reg;
+		goto error_free_channels;
 	}
 
 	ret = iio_device_register(indio_dev);
@@ -509,12 +509,8 @@ static int ad5360_probe(struct spi_device *spi)
 
 error_disable_reg:
 	regulator_bulk_disable(st->chip_info->num_vrefs, st->vref_reg);
-error_free_reg:
-	regulator_bulk_free(st->chip_info->num_vrefs, st->vref_reg);
 error_free_channels:
 	kfree(indio_dev->channels);
-error_free:
-	iio_device_free(indio_dev);
 
 	return ret;
 }
@@ -529,9 +525,6 @@ static int ad5360_remove(struct spi_device *spi)
 	kfree(indio_dev->channels);
 
 	regulator_bulk_disable(st->chip_info->num_vrefs, st->vref_reg);
-	regulator_bulk_free(st->chip_info->num_vrefs, st->vref_reg);
-
-	iio_device_free(indio_dev);
 
 	return 0;
 }