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Mon, 17 Oct 2022 16:02:37 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , Subject: [PATCH v7 5/5] iommu: Propagate return value in ->attach_dev callback functions Date: Mon, 17 Oct 2022 16:02:36 -0700 Message-ID: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT029:EE_|PH7PR12MB6659:EE_ X-MS-Office365-Filtering-Correlation-Id: 92a8ffc0-564a-4070-4368-08dab093b488 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:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230022)(4636009)(39860400002)(376002)(136003)(346002)(396003)(451199015)(40470700004)(46966006)(36840700001)(36756003)(82740400003)(40460700003)(356005)(7636003)(8936002)(83380400001)(5660300002)(7416002)(41300700001)(2906002)(70206006)(70586007)(4326008)(8676002)(86362001)(36860700001)(316002)(110136005)(40480700001)(336012)(54906003)(82310400005)(47076005)(426003)(186003)(7696005)(2616005)(26005)(478600001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Oct 2022 23:02:46.0919 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 92a8ffc0-564a-4070-4368-08dab093b488 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT029.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6659 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The mtk_iommu and virtio drivers have places in the ->attach_dev callback functions that return hardcode errnos instead of the returned values, but callers of these ->attach_dv callback functions may care. Propagate them directly without the extra conversions. Reviewed-by: Kevin Tian Reviewed-by: Jean-Philippe Brucker Reviewed-by: Jason Gunthorpe Reviewed-by: Yong Wu Signed-off-by: Nicolin Chen --- drivers/iommu/mtk_iommu.c | 2 +- drivers/iommu/virtio-iommu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index f3dc2aba188e..660c5296f338 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -668,7 +668,7 @@ static int mtk_iommu_attach_device(struct iommu_domain = *domain, ret =3D mtk_iommu_domain_finalise(dom, frstdata, region_id); if (ret) { mutex_unlock(&dom->mutex); - return -ENODEV; + return ret; } dom->bank =3D &data->bank[bankid]; } diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 9e0ca757fa42..a204942f28fe 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -695,7 +695,7 @@ static int viommu_domain_finalise(struct viommu_endpoin= t *vdev, if (ret) { ida_free(&viommu->domain_ids, vdomain->id); vdomain->viommu =3D NULL; - return -EOPNOTSUPP; + return ret; } } =20 --=20 2.17.1