From 5d97d9e9a703be2a602ac24c1ba3dae22155a2c8 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 15 Dec 2021 14:50:53 +0300
Subject: iio: addac: ad74413r: fix off by one in
 ad74413r_parse_channel_config()

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>
Reviewed-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/addac/ad74413r.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/iio/addac')

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;
 	}
-- 
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