iio: dac: ti-dac5571: fix an error code in probe()

If we have an unexpected number of channels then return -EINVAL instead
of returning success.

Fixes: df38a4a72a3b ("iio: dac: add TI DAC5571 family support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210816183954.GB2068@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index 2a5ba1b08a1d0af6c6aea10ea016a93a95381781..546a4cf6c5ef8325937b248b883f1663f6ae8a0d 100644 (file)
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -350,6 +350,7 @@ static int dac5571_probe(struct i2c_client *client,
                data->dac5571_pwrdwn = dac5571_pwrdwn_quad;
                break;
        default:
+               ret = -EINVAL;
                goto err;
        }