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@xxxxxxxxx> --- drivers/iio/adc/cpcap-adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/cpcap-adc.c b/drivers/iio/adc/cpcap-adc.c index 40e59f4c95bc..b6c4ef70484e 100644 --- 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]); -- 2.34.1