[PATCH AUTOSEL 4.19 01/49] iio: dac: ds4422/ds4424 fix chip verification

Sasha Levin
2019-06-08T11:42:37Z

From: Ruslan Babayev <ruslan@babayev.com>

[ Upstream commit 60f2208699ec08ff9fdf1f97639a661a92a18f1c ]

The ds4424_get_value function takes channel number as it's 3rd
argument and translates it internally into I2C address using
DS4424_DAC_ADDR macro. The caller ds4424_verify_chip was passing an
already translated I2C address as its last argument.

Signed-off-by: Ruslan Babayev <ruslan@babayev.com>
Cc: xe-linux-external@cisco.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/dac/ds4424.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/dac/ds4424.c b/drivers/iio/dac/ds4424.c
index 883a47562055..714a97f91319 100644
--- a/drivers/iio/dac/ds4424.c
+++ b/drivers/iio/dac/ds4424.c
@@ -166,7 +166,7 @@ static int ds4424_verify_chip(struct iio_dev *indio_dev)
{
int ret, val;

- ret = ds4424_get_value(indio_dev, &val, DS4424_DAC_ADDR(0));
+ ret = ds4424_get_value(indio_dev, &val, 0);
if (ret < 0)
dev_err(&indio_dev->dev,
"%s failed. ret: %d\n", __func__, ret);
--
2.20.1