[PATCH 4.19 32/50] iio: dac: ti-dac5571: fix an error code in probe()

Greg Kroah-Hartman
2021-10-18T13:30:33Z

From: Dan Carpenter <dan.carpenter@oracle.com>

commit f7a28df7db84eb3410e9eca37832efa5aed93338 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/dac/ti-dac5571.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -355,6 +355,7 @@ static int dac5571_probe(struct i2c_clie
data->dac5571_pwrdwn = dac5571_pwrdwn_quad;
break;
default:
+ ret = -EINVAL;
goto err;
}