[PATCH 10/12] iio: accel: kionix-kx022a: Fix array boundary check

[Matti Vaittinen]

From: Matti Vaittinen <mazziesaccount@xxxxxxxxx>

The driver performs a sanity check for an array size, when converting a
register value to an array index. The check incorrectly accepts the
sizeof(array) as a last index, when last valid index should be
sizeof(array) - 1.

Fix the check by bailing out when index >= sizeof(array).

Signed-off-by: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
Fixes: 7c1d1677b322 ("iio: accel: Support Kionix/ROHM KX022A accelerometer")
---
 drivers/iio/accel/kionix-kx022a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c
index 39485572a76b..8a13f78aeab0 100644
--- a/drivers/iio/accel/kionix-kx022a.c
+++ b/drivers/iio/accel/kionix-kx022a.c
@@ -649,7 +649,7 @@ static int kx022a_read_raw(struct iio_dev *idev,
 		if (ret)
 			return ret;
 
-		if ((regval & KX022A_MASK_ODR) >
+		if ((regval & KX022A_MASK_ODR) >=
 		    ARRAY_SIZE(kx022a_accel_samp_freq_table)) {
 			dev_err(data->dev, "Invalid ODR\n");
 			return -EINVAL;
-- 
2.55.0

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