From 62a45b384a2833fbdff4658a56dab38e9d6f4580 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <error27@gmail.com>
Date: Thu, 17 Nov 2022 18:29:05 +0300
Subject: [PATCH] net: microchip: sparx5: prevent uninitialized variable
Smatch complains that:
drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c:112
sparx5_dcb_apptrust_validate() error: uninitialized symbol 'match'.
This would only happen if the:
if (sparx5_dcb_apptrust_policies[i].nselectors != nselectors)
condition is always true (they are not equal). The "nselectors"
variable comes from dcbnl_ieee_set() and it is a number between 0-256.
This seems like a probably a real bug.
Fixes: 23f8382cd95d ("net: microchip: sparx5: add support for apptrust")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c
index 8108f3767767a..74abb946b2a30 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c
@@ -90,7 +90,7 @@ static int sparx5_dcb_app_validate(struct net_device *dev,
static int sparx5_dcb_apptrust_validate(struct net_device *dev, u8 *selectors,
int nselectors, int *err)
{
- bool match;
+ bool match = false;
int i, ii;
for (i = 0; i < ARRAY_SIZE(sparx5_dcb_apptrust_policies); i++) {