iio: adc: ad7476: 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>

1 files changed, 8 insertions, 18 deletions

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index 2e98bef4af67..6d2b1d8d1a1f 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -213,24 +213,21 @@ static int ad7476_probe(struct spi_device *spi)
         struct iio_dev *indio_dev;
         int ret;
 
-        indio_dev = iio_device_alloc(sizeof(*st));
-        if (indio_dev == NULL) {
-                ret = -ENOMEM;
-                goto error_ret;
-        }
+        indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+        if (!indio_dev)
+                return -ENOMEM;
+
         st = iio_priv(indio_dev);
         st->chip_info =
                 &ad7476_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
-        st->reg = regulator_get(&spi->dev, "vcc");
-        if (IS_ERR(st->reg)) {
-                ret = PTR_ERR(st->reg);
-                goto error_free_dev;
-        }
+        st->reg = devm_regulator_get(&spi->dev, "vcc");
+        if (IS_ERR(st->reg))
+                return PTR_ERR(st->reg);
 
         ret = regulator_enable(st->reg);
         if (ret)
-                goto error_put_reg;
+                return ret;
 
         spi_set_drvdata(spi, indio_dev);
 
@@ -268,12 +265,7 @@ error_ring_unregister:
         iio_triggered_buffer_cleanup(indio_dev);
 error_disable_reg:
         regulator_disable(st->reg);
-error_put_reg:
-        regulator_put(st->reg);
-error_free_dev:
-        iio_device_free(indio_dev);
 
-error_ret:
         return ret;
 }
 
@@ -285,8 +277,6 @@ static int ad7476_remove(struct spi_device *spi)
         iio_device_unregister(indio_dev);
         iio_triggered_buffer_cleanup(indio_dev);
         regulator_disable(st->reg);
-        regulator_put(st->reg);
-        iio_device_free(indio_dev);
 
         return 0;
 }