[PATCH v8 5/6] iio: adc: ad7606: exit for invalid fdt dt_schema properties

[Angelo Dureghello]

From: Angelo Dureghello <adureghello@xxxxxxxxxxxx>

Fix ad7606_get_chan_config() fdt parsing function to exit for error in
case of invalid dt_schema values.

Idea is to not proceed when there are values that are not allowed under
the dt_schema.

Signed-off-by: Angelo Dureghello <adureghello@xxxxxxxxxxxx>
---
 drivers/iio/adc/ad7606.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 9a9bef0cfbb37138f71ba5b1babeaa423eaf4d5a..e0a666cc0e14255754e74daa9e1e88bc4ad1665c 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -319,15 +319,13 @@ static int ad7606_get_chan_config(struct iio_dev *indio_dev, int ch,
 
 		ret = fwnode_property_read_u32(child, "reg", &reg);
 		if (ret)
-			continue;
+			return ret;
 
 		/* channel number (here) is from 1 to num_channels */
-		if (reg < 1 || reg > num_channels) {
-			dev_warn(dev,
-				 "Invalid channel number (ignoring): %d\n", reg);
-			continue;
-		}
+		if (reg < 1 || reg > num_channels)
+			return -EINVAL;
 
+		/* Loop until we are in the right channel. */
 		if (reg != (ch + 1))
 			continue;
 

-- 
2.49.0