iio: adc: ad7266: 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/ad7266.c b/drivers/iio/adc/ad7266.c
index c2744a7..371731d 100644 (file)
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -399,17 +399,17 @@ static int ad7266_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)
                return -ENOMEM;
 
        st = iio_priv(indio_dev);
 
-       st->reg = regulator_get(&spi->dev, "vref");
+       st->reg = devm_regulator_get(&spi->dev, "vref");
        if (!IS_ERR_OR_NULL(st->reg)) {
                ret = regulator_enable(st->reg);
                if (ret)
-                       goto error_put_reg;
+                       return ret;
 
                ret = regulator_get_voltage(st->reg);
                if (ret < 0)
@@ -489,11 +489,6 @@ error_free_gpios:
 error_disable_reg:
        if (!IS_ERR_OR_NULL(st->reg))
                regulator_disable(st->reg);
-error_put_reg:
-       if (!IS_ERR_OR_NULL(st->reg))
-               regulator_put(st->reg);
-
-       iio_device_free(indio_dev);
 
        return ret;
 }
@@ -507,11 +502,8 @@ static int ad7266_remove(struct spi_device *spi)
        iio_triggered_buffer_cleanup(indio_dev);
        if (!st->fixed_addr)
                gpio_free_array(st->gpios, ARRAY_SIZE(st->gpios));
-       if (!IS_ERR_OR_NULL(st->reg)) {
+       if (!IS_ERR_OR_NULL(st->reg))
                regulator_disable(st->reg);
-               regulator_put(st->reg);
-       }
-       iio_device_free(indio_dev);
 
        return 0;
 }