iio: accel: adxl380: fix raw sample read

The adxl380_read_chn function returns either a negative value in case an
error occurs or the actual sample.

Check only for negative values after a channel is read.

Fixes: df36de13677a ("iio: accel: add ADXL380 driver")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://patch.msgid.link/20241101095202.20121-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/accel/adxl380.c b/drivers/iio/accel/adxl380.c
index f80527d899be4d99310d4d1a950749ce29c9b7ed..b19ee37df7f12e2ab2bdba6584716fd17861e014 100644 (file)
--- a/drivers/iio/accel/adxl380.c
+++ b/drivers/iio/accel/adxl380.c
@@ -1181,7 +1181,7 @@ static int adxl380_read_raw(struct iio_dev *indio_dev,
 
                ret = adxl380_read_chn(st, chan->address);
                iio_device_release_direct_mode(indio_dev);
-               if (ret)
+               if (ret < 0)
                        return ret;
 
                *val = sign_extend32(ret >> chan->scan_type.shift,