[PATCH v2] iio: light: Add check for array bounds in veml6075_read_int_time_ms

[Karan Sanghavi]

The array contains only 5 elements, but the index calculated by
veml6075_read_int_time_index can range from 0 to 7,
which could lead to out-of-bounds access. The check prevents this issue.

Coverity Issue
CID 1574309: (#1 of 1): Out-of-bounds read (OVERRUN)
overrun-local: Overrunning array veml6075_it_ms of 5 4-byte
elements at element index 7 (byte offset 31) using
index int_index (which evaluates to 7)

Signed-off-by: Karan Sanghavi <karansanghvi98@xxxxxxxxx>
---
 drivers/iio/light/veml6075.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/light/veml6075.c b/drivers/iio/light/veml6075.c
index 05d4c0e9015d..21de193ca09d 100644
--- a/drivers/iio/light/veml6075.c
+++ b/drivers/iio/light/veml6075.c
@@ -210,8 +210,8 @@ static int veml6075_read_int_time_ms(struct veml6075_data *data, int *val)
 
 	guard(mutex)(&data->lock);
 	int_index = veml6075_read_int_time_index(data);
-	if (int_index < 0)
-		return int_index;
+	if (int_index < 0 || int_index >= ARRAY_SIZE(veml6075_it_ms))
+		return -EINVAL;
 
 	*val = veml6075_it_ms[int_index];
 
-- 
2.43.0