6.12-stable review patch. If anyone has any objections, please let me know.
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From: Antoniu Miclaus antoniu.miclaus@analog.com
[ Upstream commit bfa335f18d91c52fa0f8ba3e4d49afebbd9ee792 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/accel/adxl380.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/accel/adxl380.c b/drivers/iio/accel/adxl380.c index f80527d899be4..b19ee37df7f12 100644 --- 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,