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Sun, 11 Apr 2021 08:36:58 +0000 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 11 Apr 2021 08:36:57 +0000 Received: from vdi.nvidia.com (172.20.145.6) by mail.nvidia.com (172.20.187.10) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sun, 11 Apr 2021 08:36:55 +0000 From: Eli Cohen To: , , , , CC: , kernel test robot , Dan Carpenter Subject: [PATCH] vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails Date: Sun, 11 Apr 2021 11:36:46 +0300 Message-ID: <20210411083646.910546-1-elic@nvidia.com> X-Mailer: git-send-email 2.30.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b344d8d8-277c-49ad-2d95-08d8fcc4f882 X-MS-TrafficTypeDiagnostic: DM6PR12MB4043: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:398; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.112.34;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:schybrid03.nvidia.com;CAT:NONE;SFS:(4636009)(346002)(39860400002)(376002)(396003)(136003)(36840700001)(46966006)(36756003)(6666004)(82740400003)(83380400001)(426003)(2616005)(82310400003)(4744005)(4326008)(356005)(54906003)(186003)(2906002)(7636003)(70206006)(5660300002)(110136005)(47076005)(26005)(7696005)(86362001)(36906005)(8936002)(8676002)(36860700001)(70586007)(316002)(336012)(1076003)(478600001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2021 08:36:58.4166 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b344d8d8-277c-49ad-2d95-08d8fcc4f882 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.34];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT009.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4043 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Set err = -ENOMEM if dma_map_sg_attrs() fails so the function reutrns error. Fixes: 94abbccdf291 ("vdpa/mlx5: Add shared memory registration code") Signed-off-by: Eli Cohen Reported-by: kernel test robot Reported-by: Dan Carpenter Acked-by: Jason Wang Reviewed-by: Stefano Garzarella --- drivers/vdpa/mlx5/core/mr.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c index 3908ff28eec0..800cfd1967ad 100644 --- a/drivers/vdpa/mlx5/core/mr.c +++ b/drivers/vdpa/mlx5/core/mr.c @@ -278,8 +278,10 @@ static int map_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr mr->log_size = log_entity_size; mr->nsg = nsg; mr->nent = dma_map_sg_attrs(dma, mr->sg_head.sgl, mr->nsg, DMA_BIDIRECTIONAL, 0); - if (!mr->nent) + if (!mr->nent) { + err = -ENOMEM; goto err_map; + } err = create_direct_mr(mvdev, mr); if (err)