iio: adc: ad7791: Use devm_* APIs
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
index 5e8d1da..c202035 100644
--- a/drivers/iio/adc/ad7791.c
+++ b/drivers/iio/adc/ad7791.c
@@ -361,21 +361,19 @@
return -ENXIO;
}
- indio_dev = iio_device_alloc(sizeof(*st));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (!indio_dev)
return -ENOMEM;
st = iio_priv(indio_dev);
- st->reg = regulator_get(&spi->dev, "refin");
- if (IS_ERR(st->reg)) {
- ret = PTR_ERR(st->reg);
- goto err_iio_free;
- }
+ st->reg = devm_regulator_get(&spi->dev, "refin");
+ if (IS_ERR(st->reg))
+ return PTR_ERR(st->reg);
ret = regulator_enable(st->reg);
if (ret)
- goto error_put_reg;
+ return ret;
st->info = &ad7791_chip_infos[spi_get_device_id(spi)->driver_data];
ad_sd_init(&st->sd, indio_dev, spi, &ad7791_sigma_delta_info);
@@ -410,10 +408,6 @@
ad_sd_cleanup_buffer_and_trigger(indio_dev);
error_disable_reg:
regulator_disable(st->reg);
-error_put_reg:
- regulator_put(st->reg);
-err_iio_free:
- iio_device_free(indio_dev);
return ret;
}
@@ -427,9 +421,6 @@
ad_sd_cleanup_buffer_and_trigger(indio_dev);
regulator_disable(st->reg);
- regulator_put(st->reg);
-
- iio_device_free(indio_dev);
return 0;
}