iio: adc: cpcap-adc: remove redundant assignment to variable cal_data_diff

The variable cal_data_diff is being assigned a value that is never read,
it is being re-assigned later on with a new value in both paths of an
if statement. The assignment is redundant, so remove it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220207135943.340629-1-colin.i.king@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/cpcap-adc.c b/drivers/iio/adc/cpcap-adc.c
index 40e59f4..b6c4ef7 100644 (file)
--- a/drivers/iio/adc/cpcap-adc.c
+++ b/drivers/iio/adc/cpcap-adc.c
@@ -474,7 +474,7 @@ static int cpcap_adc_calibrate_one(struct cpcap_adc *ddata,
        for (i = 0; i < CPCAP_ADC_MAX_RETRIES; i++) {
                calibration_data[0]  = 0;
                calibration_data[1]  = 0;
-               cal_data_diff = 0;
+
                cpcap_adc_setup_calibrate(ddata, channel);
                error = regmap_read(ddata->reg, calibration_register,
                                    &calibration_data[0]);