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Commit 4fb840c9 authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Jonathan Cameron
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iio: adc: stm32: fix bad error check on max_channels 



Fix a bad error check when counting 'st,adc-channels' array elements.
This is seen when all channels are in use simultaneously.

Fixes: 64ad7f64 ("iio: adc: stm32: introduce compatible data cfg")
Signed-off-by: default avatarFabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent b7a9776c

drivers/iio/adc/stm32-adc.c

+1 −1
Original line number Diff line number Diff line
@@ -1656,7 +1656,7 @@ static int stm32_adc_chan_of_init(struct iio_dev *indio_dev) 


	num_channels = of_property_count_u32_elems(node, "st,adc-channels");

	if (num_channels < 0 ||

	    num_channels >= adc_info->max_channels) {

	    num_channels > adc_info->max_channels) {

		dev_err(&indio_dev->dev, "Bad st,adc-channels?\n");

		return num_channels < 0 ? num_channels : -EINVAL;

	}