netdev - [PATCH net] net/mlx5: E-Switch, Fix an Oops in error handling code

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Date:   Mon, 27 Feb 2023 14:16:10 +0300
From:   Dan Carpenter <error27@...il.com>
To:     Vu Pham <vuhuong@...lanox.com>
Cc:     Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Roi Dayan <roid@...dia.com>,
        Maor Dickman <maord@...dia.com>,
        Mark Bloch <markb@...lanox.com>,
        Parav Pandit <parav@...lanox.com>,
        Vu Pham <vuhuong@...lanox.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH net] net/mlx5: E-Switch, Fix an Oops in error handling code

The error handling dereferences "vport".  There is nothing we can do if
it is an error pointer except returning the error code.

Fixes: 133dcfc577ea ("net/mlx5: E-Switch, Alloc and free unique metadata for match")
Signed-off-by: Dan Carpenter <error27@...il.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_ofld.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_ofld.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_ofld.c
index d55775627a47..50d2ea323979 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_ofld.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_ofld.c
@@ -364,8 +364,7 @@ int mlx5_esw_acl_ingress_vport_metadata_update(struct mlx5_eswitch *esw, u16 vpo
 
 	if (WARN_ON_ONCE(IS_ERR(vport))) {
 		esw_warn(esw->dev, "vport(%d) invalid!\n", vport_num);
-		err = PTR_ERR(vport);
-		goto out;
+		return PTR_ERR(vport);
 	}
 
 	esw_acl_ingress_ofld_rules_destroy(esw, vport);
-- 
2.39.1