soc: soc_ti_k3: fix revision array bounds checks

If rev is equal to the array size, we'll access the array
one-past-the-end.

Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Bryan Brattlof <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/soc/soc_ti_k3.c b/drivers/soc/soc_ti_k3.c
index 42430d79a7a..b720131ae5d 100644
--- a/drivers/soc/soc_ti_k3.c
+++ b/drivers/soc/soc_ti_k3.c
@@ -70,12 +70,12 @@ static const char *get_rev_string(u32 idreg)
 
 	switch (soc) {
 	case JTAG_ID_PARTNO_J721E:
-		if (rev > ARRAY_SIZE(j721e_rev_string_map))
+		if (rev >= ARRAY_SIZE(j721e_rev_string_map))
 			goto bail;
 		return j721e_rev_string_map[rev];
 
 	default:
-		if (rev > ARRAY_SIZE(typical_rev_string_map))
+		if (rev >= ARRAY_SIZE(typical_rev_string_map))
 			goto bail;
 		return typical_rev_string_map[rev];
 	};