netdev - [PATCH] mlxsw: spectrum_router: remove redundant initialization of pointer br

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 26 May 2020 23:56:49 +0100
From:   Colin King <colin.king@...onical.com>
To:     Jiri Pirko <jiri@...lanox.com>, Ido Schimmel <idosch@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mlxsw: spectrum_router: remove redundant initialization of pointer br_dev

From: Colin Ian King <colin.king@...onical.com>

The pointer br_dev is being initialized with a value that is never read
and is being updated with a new value later on. The initialization
is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 71aee4914619..8f485f9a07a7 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -7572,11 +7572,12 @@ static struct mlxsw_sp_fid *
 mlxsw_sp_rif_vlan_fid_get(struct mlxsw_sp_rif *rif,
 			  struct netlink_ext_ack *extack)
 {
-	struct net_device *br_dev = rif->dev;
+	struct net_device *br_dev;
 	u16 vid;
 	int err;
 
 	if (is_vlan_dev(rif->dev)) {
+
 		vid = vlan_dev_vlan_id(rif->dev);
 		br_dev = vlan_dev_real_dev(rif->dev);
 		if (WARN_ON(!netif_is_bridge_master(br_dev)))
-- 
2.25.1