[PATCH v4 2/4] iio: adc: qcom-pm8xxx-xoadc: remove redundant error logs when reading values

[Antony Kurniawan Soemardi]

Drop dev_err() logging for -EINVAL and -ETIMEDOUT cases and rely on
return values to report errors, reducing unnecessary log noise.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Signed-off-by: Antony Kurniawan Soemardi <linux@xxxxxxxxxxxxxx>
---
 drivers/iio/adc/qcom-pm8xxx-xoadc.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/iio/adc/qcom-pm8xxx-xoadc.c b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
index 31f88cf7f7f1..89858e81c859 100644
--- a/drivers/iio/adc/qcom-pm8xxx-xoadc.c
+++ b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
@@ -535,10 +535,8 @@ static int pm8xxx_read_channel_rsv(struct pm8xxx_xoadc *adc,
 		goto unlock;
 
 	/* Next the interrupt occurs */
-	ret = wait_for_completion_timeout(&adc->complete,
-					  VADC_CONV_TIME_MAX_US);
-	if (!ret) {
-		dev_err(adc->dev, "conversion timed out\n");
+	if (!wait_for_completion_timeout(&adc->complete,
+					 VADC_CONV_TIME_MAX_US)) {
 		ret = -ETIMEDOUT;
 		goto unlock;
 	}
@@ -657,11 +655,8 @@ static int pm8xxx_read_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 	case IIO_CHAN_INFO_PROCESSED:
 		ch = pm8xxx_get_channel(adc, chan->address);
-		if (!ch) {
-			dev_err(adc->dev, "no such channel %lu\n",
-				chan->address);
+		if (!ch)
 			return -EINVAL;
-		}
 		ret = pm8xxx_read_channel(adc, ch, &adc_code);
 		if (ret)
 			return ret;
@@ -677,11 +672,8 @@ static int pm8xxx_read_raw(struct iio_dev *indio_dev,
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_RAW:
 		ch = pm8xxx_get_channel(adc, chan->address);
-		if (!ch) {
-			dev_err(adc->dev, "no such channel %lu\n",
-				chan->address);
+		if (!ch)
 			return -EINVAL;
-		}
 		ret = pm8xxx_read_channel(adc, ch, &adc_code);
 		if (ret)
 			return ret;

-- 
2.34.1