diff options
| author | David Lechner <dlechner@baylibre.com> | 2024-10-30 16:09:41 -0500 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-10-31 21:41:00 +0000 |
| commit | 62dd96ac9cdf2814f41cfc55ecaf22a28aad6ccb (patch) | |
| tree | 1d07ae74d69c8e9343994c34f7d116e3d7574d72 | |
| parent | c174b53e95adf2eece2afc56cd9798374919f99a (diff) | |
iio: adc: ad4000: fix reading unsigned data
Fix reading unsigned data from the AD4000 ADC via the _raw sysfs
attribute by ensuring that *val is set before returning from
ad4000_single_conversion(). This was not being set in any code path
and was causing the attribute to return a random value.
Fixes: 938fd562b974 ("iio: adc: Add support for AD4000")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20241030-iio-adc-ad4000-fix-reading-unsigned-data-v1-1-2e28dd75fe29@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad4000.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iio/adc/ad4000.c b/drivers/iio/adc/ad4000.c index 6ea491245084..fc9c9807f89d 100644 --- a/drivers/iio/adc/ad4000.c +++ b/drivers/iio/adc/ad4000.c @@ -344,6 +344,8 @@ static int ad4000_single_conversion(struct iio_dev *indio_dev, if (chan->scan_type.sign == 's') *val = sign_extend32(sample, chan->scan_type.realbits - 1); + else + *val = sample; return IIO_VAL_INT; } |