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Commit 2a69d401 authored by Jishnu Prakash's avatar Jishnu Prakash Committed by Gerrit - the friendly Code Review server
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iio: adc: Update error handling for ADC reading 



Add error check to ensure that the ADC conversion API exits
immediately with error if invalid value is read from conversion
result registers.

Change-Id: I31d049b6abc6cbb9b79811fd9cbdfacfdb730ba2
Signed-off-by: default avatarJishnu Prakash <jprakash@codeaurora.org>
parent fd8f045d

drivers/iio/adc/qcom-spmi-adc5.c

+6 −1
Original line number Diff line number Diff line
@@ -541,14 +541,19 @@ static int adc_do_conversion(struct adc_chip *adc, 
	if (ret < 0)

		goto unlock;



	if ((chan->type == IIO_VOLTAGE) || (chan->type == IIO_TEMP))

	if ((chan->type == IIO_VOLTAGE) || (chan->type == IIO_TEMP)) {

		ret = adc_read_voltage_data(adc, data_volt);

		if (ret)

			goto unlock;

	}

	else if (chan->type == IIO_POWER) {

		ret = adc_read_voltage_data(adc, data_volt);

		if (ret)

			goto unlock;



		ret = adc_read_current_data(adc, data_cur);

		if (ret)

			goto unlock;

	}



	ret = adc_post_configure_usb_in_read(adc, prop);