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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2017-02-09 10:03:41 -0500
committerJonathan Cameron <jic23@kernel.org>2017-02-11 09:36:38 +0000
commitca8d8e03b4c9ad447d1e882cc8014e538f653018 (patch)
tree6a82347ade263c9a7620376eac3f8a248cdcb393 /drivers/iio/counter
parent17fa2dcbd6325ab877651bef04fca9dd828a2758 (diff)
iio: 104-quad-8: Fix off-by-one error when addressing flag register
The flag register is offset by 1 from the respective channel data register. This patch fixes an off-by-one error when attempting to read a channel flag register where the base address was not properly offset. Fixes: 28e5d3bb0325 ("iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8") Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/counter')
-rw-r--r--drivers/iio/counter/104-quad-8.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/counter/104-quad-8.c b/drivers/iio/counter/104-quad-8.c
index a5913e97945e..f9b8fc9ae13f 100644
--- a/drivers/iio/counter/104-quad-8.c
+++ b/drivers/iio/counter/104-quad-8.c
@@ -76,7 +76,7 @@ static int quad8_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
}
- flags = inb(base_offset);
+ flags = inb(base_offset + 1);
borrow = flags & BIT(0);
carry = !!(flags & BIT(1));