staging: iio: tsl2x7x: put local variables in reverse Christmas tree order

This patch ensures that all of the local variable declarations are in
reverse Christmas tree order where possible to increase code
readability.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/light/tsl2x7x.c

@@ -336,13 +336,12 @@ static int tsl2x7x_write_control_reg(struct tsl2X7X_chip *chip, u8 data)
  */
 static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 {
-	u32 lux; /* raw lux calculated from device data */
-	u64 lux64;
-	u32 ratio;
-	u8 buf[4];
-	struct tsl2x7x_lux *p;
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+	struct tsl2x7x_lux *p;
+	u32 lux, ratio;
 	int i, ret;
+	u64 lux64;
+	u8 buf[4];
 
 	mutex_lock(&chip->als_mutex);
 
@@ -589,13 +588,9 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
 
 static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 {
-	int i;
-	int ret = 0;
-	u8 *dev_reg;
-	int als_count;
-	int als_time;
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	u8 reg_val = 0;
+	int ret, i, als_count, als_time;
+	u8 *dev_reg, reg_val;
 
 	/* Non calculated parameters */
 	chip->tsl2x7x_config[TSL2X7X_PRX_TIME] = chip->settings.prx_time;
@@ -1121,8 +1116,8 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
 			    int *val2,
 			    long mask)
 {
-	int ret = -EINVAL;
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+	int ret = -EINVAL;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_PROCESSED:
@@ -1583,9 +1578,9 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 static int tsl2x7x_probe(struct i2c_client *clientp,
 			 const struct i2c_device_id *id)
 {
-	int ret;
 	struct iio_dev *indio_dev;
 	struct tsl2X7X_chip *chip;
+	int ret;
 
 	indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
 	if (!indio_dev)