[PATCH v8 2/8] iio: dac: ad5686: missing NULL check on match data

[Rodrigo Alencar via B4 Relay]

From: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>

Verify that chip_info pointer is not NULL. If a user binds the driver
using driver_override via sysfs with a device name not present in the
id_table or of_match_table, match data will be NULL.

Fixes: 0eb1728461a1 ("iio: dac: ad5686: drop enum id")
Reported-by: sashiko-bot@xxxxxxxxxx
Closes: https://lore.kernel.org/all/20260710113149.53EC51F000E9@xxxxxxxxxxxxxxx/
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>
---
 drivers/iio/dac/ad5686.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 713fe71ad1e7..d34250647aa4 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -479,6 +479,9 @@ int ad5686_probe(struct device *dev,
 	struct iio_dev *indio_dev;
 	int ret, i;
 
+	if (!chip_info)
+		return -ENODEV;
+
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return  -ENOMEM;

-- 
2.43.0