iio: adc: ad7780: add dev variable

Add a local struct device pointer to simplify repeated &spi->dev
dereferences throughout the probe function.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad7780.c b/drivers/iio/adc/ad7780.c
index 24d2dcad8f4da309fafea787c2db252981663a45..4c1990e27213593a980e48eb2c43f726c6a69381 100644 (file)
--- a/drivers/iio/adc/ad7780.c
+++ b/drivers/iio/adc/ad7780.c
@@ -307,11 +307,12 @@ static void ad7780_reg_disable(void *reg)
 
 static int ad7780_probe(struct spi_device *spi)
 {
+       struct device *dev = &spi->dev;
        struct ad7780_state *st;
        struct iio_dev *indio_dev;
        int ret;
 
-       indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+       indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
        if (!indio_dev)
                return -ENOMEM;
 
@@ -329,11 +330,11 @@ static int ad7780_probe(struct spi_device *spi)
        indio_dev->num_channels = 1;
        indio_dev->info = &ad7780_info;
 
-       ret = ad7780_init_gpios(&spi->dev, st);
+       ret = ad7780_init_gpios(dev, st);
        if (ret)
                return ret;
 
-       st->reg = devm_regulator_get(&spi->dev, "avdd");
+       st->reg = devm_regulator_get(dev, "avdd");
        if (IS_ERR(st->reg))
                return PTR_ERR(st->reg);
 
@@ -343,15 +344,15 @@ static int ad7780_probe(struct spi_device *spi)
                return ret;
        }
 
-       ret = devm_add_action_or_reset(&spi->dev, ad7780_reg_disable, st->reg);
+       ret = devm_add_action_or_reset(dev, ad7780_reg_disable, st->reg);
        if (ret)
                return ret;
 
-       ret = devm_ad_sd_setup_buffer_and_trigger(&spi->dev, indio_dev);
+       ret = devm_ad_sd_setup_buffer_and_trigger(dev, indio_dev);
        if (ret)
                return ret;
 
-       return devm_iio_device_register(&spi->dev, indio_dev);
+       return devm_iio_device_register(dev, indio_dev);
 }
 
 static const struct spi_device_id ad7780_id[] = {