From: Ruslan Babayev ruslan@babayev.com
commit 60f2208699ec08ff9fdf1f97639a661a92a18f1c upstream.
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: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/iio/dac/ds4424.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/dac/ds4424.c +++ b/drivers/iio/dac/ds4424.c @@ -166,7 +166,7 @@ static int ds4424_verify_chip(struct iio { 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);