Subject: [PATCH 1/2 net-next] net: dsa: mv88e6xxx: Fix off by in one in mv88e6185_phylink_get_caps()

From: Dan Carpenter <[email-masked]>
Date: Mon, 7 Feb 2022 11:22:53 +0300

The <= ARRAY_SIZE() needs to be < ARRAY_SIZE() to prevent an out of
bounds error.

Fixes: d4ebf12bcec4 ("net: dsa: mv88e6xxx: populate supported_interfaces and mac_capabilities")
Signed-off-by: Dan Carpenter <[email-masked]>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 7670796c2aa1..192a7688b4df 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -585,7 +585,7 @@ static void mv88e6185_phylink_get_caps(struct mv88e6xxx_chip *chip, int port,
 {
 	u8 cmode = chip->ports[port].cmode;
 
-	if (cmode <= ARRAY_SIZE(mv88e6185_phy_interface_modes) &&
+	if (cmode < ARRAY_SIZE(mv88e6185_phy_interface_modes) &&
 	    mv88e6185_phy_interface_modes[cmode])
 		__set_bit(mv88e6185_phy_interface_modes[cmode],
 			  config->supported_interfaces);
-- 
2.20.1