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iio: adc: ad7606: exit for invalid fdt dt_schema properties

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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@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-5-6e014a1f92a2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Angelo Dureghello
2025-06-06 16:19:20 +02:00
committed by Jonathan Cameron
parent e986466a92
commit 9dc4ef3a5b
1 changed files with 4 additions and 6 deletions
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10
drivers/iio/adc/ad7606.c
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@@ -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;