iio: adc: mcp320x: Use devm_* APIs
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Oskar Andero <oskar.andero@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index ebc0159..28a086e 100644
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -169,7 +169,7 @@
const struct mcp3208_chip_info *chip_info;
int ret;
- indio_dev = iio_device_alloc(sizeof(*adc));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
if (!indio_dev)
return -ENOMEM;
@@ -193,15 +193,13 @@
spi_message_init_with_transfers(&adc->msg, adc->transfer,
ARRAY_SIZE(adc->transfer));
- adc->reg = regulator_get(&spi->dev, "vref");
- if (IS_ERR(adc->reg)) {
- ret = PTR_ERR(adc->reg);
- goto iio_free;
- }
+ adc->reg = devm_regulator_get(&spi->dev, "vref");
+ if (IS_ERR(adc->reg))
+ return PTR_ERR(adc->reg);
ret = regulator_enable(adc->reg);
if (ret < 0)
- goto reg_free;
+ return ret;
mutex_init(&adc->lock);
@@ -213,10 +211,6 @@
reg_disable:
regulator_disable(adc->reg);
-reg_free:
- regulator_put(adc->reg);
-iio_free:
- iio_device_free(indio_dev);
return ret;
}
@@ -228,8 +222,6 @@
iio_device_unregister(indio_dev);
regulator_disable(adc->reg);
- regulator_put(adc->reg);
- iio_device_free(indio_dev);
return 0;
}