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staging: iio: ad7780: fix offset read value

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Variable val subtracted an uninitialized value on IIO_CHAN_INFO_OFFSET.
This was fixed by assigning the correct value instead.

Signed-off-by: Renato Lui Geh <renatogeh@gmail.com>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Renato Lui Geh
2018-11-01 11:43:02 -03:00
committed by Jonathan Cameron
parent 382c7fce70
commit 5ccc612b83
1 changed files with 1 additions and 1 deletions
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drivers/staging/iio/adc/ad7780.c
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@@ -96,7 +96,7 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
*val2 = chan->scan_type.realbits - 1;
return IIO_VAL_FRACTIONAL_LOG2;
case IIO_CHAN_INFO_OFFSET:
*val -= (1 << (chan->scan_type.realbits - 1));
*val = -(1 << (chan->scan_type.realbits - 1));
return IIO_VAL_INT;
}