iio: adc: ad7887: 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/ad7887.c b/drivers/iio/adc/ad7887.c
index dd15a5b..9dd077b 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -237,25 +237,24 @@
{
struct ad7887_platform_data *pdata = spi->dev.platform_data;
struct ad7887_state *st;
- struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
+ struct iio_dev *indio_dev;
uint8_t mode;
int ret;
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
st = iio_priv(indio_dev);
if (!pdata || !pdata->use_onchip_ref) {
- st->reg = regulator_get(&spi->dev, "vref");
- if (IS_ERR(st->reg)) {
- ret = PTR_ERR(st->reg);
- goto error_free;
- }
+ st->reg = devm_regulator_get(&spi->dev, "vref");
+ if (IS_ERR(st->reg))
+ return PTR_ERR(st->reg);
ret = regulator_enable(st->reg);
if (ret)
- goto error_put_reg;
+ return ret;
}
st->chip_info =
@@ -331,11 +330,6 @@
error_disable_reg:
if (st->reg)
regulator_disable(st->reg);
-error_put_reg:
- if (st->reg)
- regulator_put(st->reg);
-error_free:
- iio_device_free(indio_dev);
return ret;
}
@@ -347,11 +341,8 @@
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
- if (st->reg) {
+ if (st->reg)
regulator_disable(st->reg);
- regulator_put(st->reg);
- }
- iio_device_free(indio_dev);
return 0;
}