Re: [PATCH 2/2] iio: dac: ds4422/ds4424 fix chip verification

From: Jonathan Cameron
Date: Sat May 11 2019 - 07:50:45 EST


On Sun, 5 May 2019 12:24:37 -0700
Ruslan Babayev <ruslan@xxxxxxxxxxx> wrote:

> 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@xxxxxxxxxxx>
> Cc: xe-linux-external@xxxxxxxxx
Applied to the fixes-togreg branch of iio.git and marked for stable.

Thanks,

Jonathan

> ---
> 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 2b3ba1a66fe8..ae9be792693b 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);