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Date: Thu, 9 Feb 2017 10:03:41 -0500 From: William Breathitt Gray <vilhelm.gray@...il.com> To: Jonathan Cameron <jic23@...nel.org>, Hartmut Knaack <knaack.h@....de>, Lars-Peter Clausen <lars@...afoo.de>, Peter Meerwald-Stadler <pmeerw@...erw.net> Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] 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@...il.com> --- drivers/iio/counter/104-quad-8.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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)); -- 2.11.1
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