[patch] staging: iio/ad7291: fix error code in ad7291_probe()

[Jonathan Cameron]

On 20/06/14 20:22, Dan Carpenter wrote:
> We should be returning a negative error code instead of success here.
>
> This would have been detected by GCC, except that the "ret" variable was
> initialized with a bogus value to disable GCC's uninitialized variable
> warnings.  I've cleaned that up, as well.
>
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
Applied to the fixes-togreg branch of iio.git and cc'd to stable.

Thanks,

Jonathan
>
> diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
> index 357cef2..7194bd1 100644
> --- a/drivers/staging/iio/adc/ad7291.c
> +++ b/drivers/staging/iio/adc/ad7291.c
> @@ -465,7 +465,7 @@ static int ad7291_probe(struct i2c_client *client,
>   	struct ad7291_platform_data *pdata = client->dev.platform_data;
>   	struct ad7291_chip_info *chip;
>   	struct iio_dev *indio_dev;
> -	int ret = 0;
> +	int ret;
>
>   	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
>   	if (!indio_dev)
> @@ -475,7 +475,7 @@ static int ad7291_probe(struct i2c_client *client,
>   	if (pdata && pdata->use_external_ref) {
>   		chip->reg = devm_regulator_get(&client->dev, "vref");
>   		if (IS_ERR(chip->reg))
> -			return ret;
> +			return PTR_ERR(chip->reg);
>
>   		ret = regulator_enable(chip->reg);
>   		if (ret)
> --
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