netdev - [PATCH net-next 1/9] mlxsw: spectrum_router: Fix wrong kfree() in error path

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Message-Id: <20201117174704.291990-2-idosch@idosch.org>
Date:   Tue, 17 Nov 2020 19:46:56 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
        dsahern@...il.com, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 1/9] mlxsw: spectrum_router: Fix wrong kfree() in error path

From: Ido Schimmel <idosch@...dia.com>

The function allocates 'nhgi', not 'nh_grp', so it needs to free the
former in its error path.

Fixes: 7f7a417e6a11 ("mlxsw: spectrum_router: Split nexthop group configuration to a different struct")
Addresses-Coverity: ("Memory - corruptions  (USE_AFTER_FREE)")
Reviewed-by: Jiri Pirko <jiri@...dia.com>
Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index a2e81ad5790f..7dbf02f45913 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -5423,7 +5423,7 @@ mlxsw_sp_nexthop6_group_info_init(struct mlxsw_sp *mlxsw_sp,
 		nh = &nhgi->nexthops[i];
 		mlxsw_sp_nexthop6_fini(mlxsw_sp, nh);
 	}
-	kfree(nh_grp);
+	kfree(nhgi);
 	return err;
 }
 
-- 
2.28.0