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Miller" , Jakub Kicinski , "Jianbo Liu" , Mark Bloch , Roi Dayan , Vladimir Oltean , , Subject: Re: [PATCH][linux-next] net/mlx5: Bridge, fix uninitialized variable in mlx5_esw_bridge_port_changeupper() In-Reply-To: <20210818155210.14522-1-tim.gardner@canonical.com> Date: Wed, 18 Aug 2021 19:47:55 +0300 Message-ID: MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [172.20.187.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To DRHQMAIL107.nvidia.com (10.27.9.16) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: fd2fbb40-ce88-44d9-ccac-08d96267f10d X-MS-TrafficTypeDiagnostic: BY5PR12MB4081: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6790; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.112.36;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:schybrid05.nvidia.com;CAT:NONE;SFS:(4636009)(39860400002)(136003)(376002)(346002)(396003)(36840700001)(46966006)(86362001)(82740400003)(7636003)(8936002)(356005)(426003)(110136005)(316002)(8676002)(4326008)(82310400003)(54906003)(26005)(186003)(16526019)(2906002)(47076005)(5660300002)(70206006)(70586007)(36860700001)(336012)(2616005)(7696005)(36756003)(478600001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Aug 2021 16:48:01.3893 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fd2fbb40-ce88-44d9-ccac-08d96267f10d X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.36];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT049.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4081 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 18 Aug 2021 at 18:52, Tim Gardner wrote: > A recent change removed code that initialized the return code variable 'err'. It > is now possible for mlx5_esw_bridge_port_changeupper() to return an error code > using this uninitialized variable. Fix it by initializing to 0. > > Addresses-Coverity: ("Uninitialized scalar variable (UNINIT)") > > Cc: Saeed Mahameed > Cc: Leon Romanovsky > Cc: "David S. Miller" > Cc: Jakub Kicinski > Cc: Vlad Buslov > Cc: Jianbo Liu > Cc: Mark Bloch > Cc: Roi Dayan > Cc: Vladimir Oltean > Cc: netdev@vger.kernel.org > Cc: linux-rdma@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Tim Gardner > --- Tim, thanks for fixing this! Saeed, this is the second similar issue that I mentioned in my reply to Colin. Again, I've already submitted same patch internally and this one is as good as mine. Reviewed-by: Vlad Buslov [...]