iio: adc: ad799x: use local device pointer in probe

Introduce a local device pointer 'dev' in ad799x_probe() and use it
throughout the function instead of accessing &client->dev repeatedly.

Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Archit Anant <architanant5@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
index f37f1fda2dc48d73f0f9649b994d285226414d4a..bf0575585a59bba7d3b436ab1681514d8369cf90 100644 (file)
--- a/drivers/iio/adc/ad799x.c
+++ b/drivers/iio/adc/ad799x.c
@@ -783,6 +783,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 
 static int ad799x_probe(struct i2c_client *client)
 {
+       struct device *dev = &client->dev;
        const struct i2c_device_id *id = i2c_client_get_device_id(client);
        int ret;
        int extra_config = 0;
@@ -791,7 +792,7 @@ static int ad799x_probe(struct i2c_client *client)
        const struct ad799x_chip_info *chip_info =
                &ad799x_chip_info_tbl[id->driver_data];
 
-       indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
+       indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
        if (indio_dev == NULL)
                return -ENOMEM;
 
@@ -807,7 +808,7 @@ static int ad799x_probe(struct i2c_client *client)
 
        /* TODO: Add pdata options for filtering and bit delay */
 
-       st->reg = devm_regulator_get(&client->dev, "vcc");
+       st->reg = devm_regulator_get(dev, "vcc");
        if (IS_ERR(st->reg))
                return PTR_ERR(st->reg);
        ret = regulator_enable(st->reg);
@@ -816,17 +817,17 @@ static int ad799x_probe(struct i2c_client *client)
 
        /* check if an external reference is supplied */
        if (chip_info->has_vref) {
-               st->vref = devm_regulator_get_optional(&client->dev, "vref");
+               st->vref = devm_regulator_get_optional(dev, "vref");
                ret = PTR_ERR_OR_ZERO(st->vref);
                if (ret) {
                        if (ret != -ENODEV)
                                goto error_disable_reg;
                        st->vref = NULL;
-                       dev_info(&client->dev, "Using VCC reference voltage\n");
+                       dev_info(dev, "Using VCC reference voltage\n");
                }
 
                if (st->vref) {
-                       dev_info(&client->dev, "Using external reference voltage\n");
+                       dev_info(dev, "Using external reference voltage\n");
                        extra_config |= AD7991_REF_SEL;
                        ret = regulator_enable(st->vref);
                        if (ret)
@@ -853,7 +854,7 @@ static int ad799x_probe(struct i2c_client *client)
                goto error_disable_vref;
 
        if (client->irq > 0) {
-               ret = devm_request_threaded_irq(&client->dev,
+               ret = devm_request_threaded_irq(dev,
                                                client->irq,
                                                NULL,
                                                ad799x_event_handler,