From 4e9f4c12f1863b890965bfbf81d8d9bc85c12edb Mon Sep 17 00:00:00 2001 From: Gwendal Grignou Date: Thu, 4 Nov 2021 01:24:07 -0700 Subject: [PATCH] iio: ad7266: Use scan_type when processing raw data Use channel definition as root of trust and replace constant when reading elements directly using the raw sysfs attributes. Signed-off-by: Gwendal Grignou Link: https://lore.kernel.org/r/20211104082413.3681212-8-gwendal@chromium.org Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7266.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index a8ec3ef..1d345d6 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -159,7 +159,8 @@ static int ad7266_read_raw(struct iio_dev *indio_dev, *val = (*val >> 2) & 0xfff; if (chan->scan_type.sign == 's') - *val = sign_extend32(*val, 11); + *val = sign_extend32(*val, + chan->scan_type.realbits - 1); return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: -- 2.7.4