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Message-ID: <2191be4d531651db39682178ec0660eeb5697439.1541082656.git.renatogeh@gmail.com>
Date: Thu, 1 Nov 2018 11:43:02 -0300
From: Renato Lui Geh <renatogeh@...il.com>
To: lars@...afoo.de, Michael.Hennerich@...log.com, jic23@...nel.org,
knaack.h@....de, pmeerw@...erw.net, gregkh@...uxfoundation.org,
giuliano.belinassi@....br
Cc: linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org, kernel-usp@...glegroups.com
Subject: [PATCH v3 1/3] staging: iio: ad7780: fix offset read value
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@...il.com>
---
drivers/staging/iio/adc/ad7780.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index b67412db0318..91e016d534ed 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -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;
}
--
2.19.1
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