staging:iio:cdc:ad7150: Tidy up local variable positioning.

Where there is no other basis on which to order declarations
let us prefer reverse xmas tree.  Also reduce scope where
sensible.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210314181511.531414-16-jic23@kernel.org

diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index eb54245..cb3e769 100644 (file)
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -108,9 +108,9 @@ static int ad7150_read_raw(struct iio_dev *indio_dev,
                           int *val2,
                           long mask)
 {
-       int ret;
        struct ad7150_chip_info *chip = iio_priv(indio_dev);
        int channel = chan->channel;
+       int ret;
 
        switch (mask) {
        case IIO_CHAN_INFO_RAW:
@@ -143,10 +143,10 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev,
                                    enum iio_event_type type,
                                    enum iio_event_direction dir)
 {
-       int ret;
+       struct ad7150_chip_info *chip = iio_priv(indio_dev);
        u8 threshtype;
        bool thrfixed;
-       struct ad7150_chip_info *chip = iio_priv(indio_dev);
+       int ret;
 
        ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG);
        if (ret < 0)
@@ -227,10 +227,8 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev,
                                     enum iio_event_type type,
                                     enum iio_event_direction dir, int state)
 {
-       u8 thresh_type, cfg, fixed;
-       int ret;
        struct ad7150_chip_info *chip = iio_priv(indio_dev);
-       int rising = (dir == IIO_EV_DIR_RISING);
+       int ret;
 
        /*
         * There is only a single shared control and no on chip
@@ -251,6 +249,8 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev,
 
        mutex_lock(&chip->state_lock);
        if ((type != chip->type) || (dir != chip->dir)) {
+               int rising = (dir == IIO_EV_DIR_RISING);
+               u8 thresh_type, cfg, fixed;
 
                /*
                 * Need to temporarily disable both interrupts if
@@ -528,9 +528,9 @@ static const struct iio_info ad7150_info_no_irq = {
 static int ad7150_probe(struct i2c_client *client,
                        const struct i2c_device_id *id)
 {
-       int ret;
        struct ad7150_chip_info *chip;
        struct iio_dev *indio_dev;
+       int ret;
 
        indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
        if (!indio_dev)