[PATCH] iio: addac: ad74413r: fix off by one in ad74413r_parse_channel_config()

[Dan Carpenter <dan.carpenter@oracle.com>]

The > needs to be >= to prevent accessing one element beyond the end of
the st->channel_configs[] array.

Fixes: fea251b6a5db ("iio: addac: add AD74413R driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Obligatory grumble:  When you merge a new driver please use a patch
prefix based on what the driver will use.

 Bad: [SUBJECT] subsystem: add new driver for XYZ123
Good: [SUBJECT] subsystem/xyz123: add new driver for XYZ123

Same rule for adding subdirectories.  That way no one (me) has to guess.

 drivers/iio/addac/ad74413r.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c
index cbd9aa9b399a..289d254943e1 100644
--- a/drivers/iio/addac/ad74413r.c
+++ b/drivers/iio/addac/ad74413r.c
@@ -1150,7 +1150,7 @@ static int ad74413r_parse_channel_config(struct iio_dev *indio_dev,
 		return ret;
 	}
 
-	if (index > AD74413R_CHANNEL_MAX) {
+	if (index >= AD74413R_CHANNEL_MAX) {
 		dev_err(st->dev, "Channel index %u is too large\n", index);
 		return -EINVAL;
 	}
-- 
2.20.1