From a75c8a4b883108edf19127fca3e6c6c590f9ba8c Mon Sep 17 00:00:00 2001 From: Andrew Goodbody Date: Wed, 6 Aug 2025 17:43:24 +0100 Subject: [PATCH] phy: marvell: Fix off by 1 limit checks The limit checks in get_speed_string and get_type_string are off by 1 as they do not account for the maximum index into an array that can be used is 1 less than the number of elements in that array. Adjust the limit checks to allow for this. This issue was found by Smatch. Signed-off-by: Andrew Goodbody Reviewed-by: Stefan Roese --- drivers/phy/marvell/comphy_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/phy/marvell/comphy_core.c b/drivers/phy/marvell/comphy_core.c index a666a4e794e..a4121423873 100644 --- a/drivers/phy/marvell/comphy_core.c +++ b/drivers/phy/marvell/comphy_core.c @@ -28,7 +28,7 @@ static const char *get_speed_string(u32 speed) "10.3125 Gbps" }; - if (speed < 0 || speed > COMPHY_SPEED_MAX) + if (speed < 0 || speed >= COMPHY_SPEED_MAX) return "invalid"; return speed_strings[speed]; @@ -44,7 +44,7 @@ static const char *get_type_string(u32 type) "IGNORE" }; - if (type < 0 || type > COMPHY_TYPE_MAX) + if (type < 0 || type >= COMPHY_TYPE_MAX) return "invalid"; return type_strings[type]; -- 2.47.2