iio: dac: ad5504: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 139206e84cb7bf32cd17d88d0b526174a32cfee5..caffb16bc05c0ce34b9fa6c65ebfd433ec57bf8f 100644 (file)
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -281,16 +281,14 @@ static int ad5504_probe(struct spi_device *spi)
        struct regulator *reg;
        int ret, voltage_uv = 0;
 
-       indio_dev = iio_device_alloc(sizeof(*st));
-       if (indio_dev == NULL) {
-               ret = -ENOMEM;
-               goto error_ret;
-       }
-       reg = regulator_get(&spi->dev, "vcc");
+       indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+       if (!indio_dev)
+               return -ENOMEM;
+       reg = devm_regulator_get(&spi->dev, "vcc");
        if (!IS_ERR(reg)) {
                ret = regulator_enable(reg);
                if (ret)
-                       goto error_put_reg;
+                       return ret;
 
                ret = regulator_get_voltage(reg);
                if (ret < 0)
@@ -321,7 +319,7 @@ static int ad5504_probe(struct spi_device *spi)
        indio_dev->modes = INDIO_DIRECT_MODE;
 
        if (spi->irq) {
-               ret = request_threaded_irq(spi->irq,
+               ret = devm_request_threaded_irq(&spi->dev, spi->irq,
                                           NULL,
                                           &ad5504_event_handler,
                                           IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
@@ -333,22 +331,14 @@ static int ad5504_probe(struct spi_device *spi)
 
        ret = iio_device_register(indio_dev);
        if (ret)
-               goto error_free_irq;
+               goto error_disable_reg;
 
        return 0;
 
-error_free_irq:
-       if (spi->irq)
-               free_irq(spi->irq, indio_dev);
 error_disable_reg:
        if (!IS_ERR(reg))
                regulator_disable(reg);
-error_put_reg:
-       if (!IS_ERR(reg))
-               regulator_put(reg);
 
-       iio_device_free(indio_dev);
-error_ret:
        return ret;
 }
 
@@ -358,14 +348,9 @@ static int ad5504_remove(struct spi_device *spi)
        struct ad5504_state *st = iio_priv(indio_dev);
 
        iio_device_unregister(indio_dev);
-       if (spi->irq)
-               free_irq(spi->irq, indio_dev);
 
-       if (!IS_ERR(st->reg)) {
+       if (!IS_ERR(st->reg))
                regulator_disable(st->reg);
-               regulator_put(st->reg);
-       }
-       iio_device_free(indio_dev);
 
        return 0;
 }