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Fri, 29 Mar 2019 11:57:54 +0000 From: Jisheng Zhang To: Jingoo Han , Gustavo Pimentel , Lorenzo Pieralisi , Bjorn Helgaas CC: "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Robin Murphy Subject: [PATCH v4 3/5] PCI: dwc: Free MSI in the error code path of dw_pcie_host_init() Thread-Topic: [PATCH v4 3/5] PCI: dwc: Free MSI in the error code path of dw_pcie_host_init() Thread-Index: AQHU5iakPXqGrGU6TUeWd4NIoGI2eA== Date: Fri, 29 Mar 2019 11:57:54 +0000 Message-ID: <20190329195014.54e54c45@xhacker.debian> References: <20190329194750.265f6df6@xhacker.debian> In-Reply-To: <20190329194750.265f6df6@xhacker.debian> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [124.74.246.114] x-clientproxiedby: TY2PR01CA0003.jpnprd01.prod.outlook.com (2603:1096:404:a::15) To BYAPR03MB4773.namprd03.prod.outlook.com (2603:10b6:a03:134::24) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Jisheng.Zhang@synaptics.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:BYAPR03MB4677; H:BYAPR03MB4773.namprd03.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:0; received-spf: None (protection.outlook.com: synaptics.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: XpEU/8iu7x6u9BEOAQxuLy0ANXGqqMmF2KGS/9hlc/aiWj8JCRi3adUUiwxgU9AiOwEJObwsTZxXowHOyTZWCLOASbVvi9A8u3uv2zW1qxI2Xacc+za5DgOk0RCcGSXtR2P40UDg18LhJAAyEWTUtgADTymTRUOkdgE1rnNjiN7YKquePSthJ2qZ7MbLcSgUo2Pjwr4PXPgBFZxYhZfgcaNUfek9f8/D4YJKa/Bg64KbEspxTpOLWebJlUoGNBlGUS1nJDFIOuoDW1iSIgChtnrVEk+76qo5MsHSSdenmgfFvRuIzpe3k4Jicx3GAlqmiMNoeKnmFa4Bna7eFzJ/0gNB8Ckw1/8Hun9AxPbvMOK2oYEmxp+D3DO9Fptj08JUqmb4OrQjw2EijJlwYmF2/l4xN/dfYLam4ZNsFBXBZoA= Content-ID: <5CF048EA27826E449B67FB5B91E2B4A7@namprd03.prod.outlook.com> MIME-Version: 1.0 X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-Network-Message-Id: 60148251-00ad-4915-5425-08d6b43dc6f6 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Mar 2019 11:57:54.6703 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 335d1fbc-2124-4173-9863-17e7051a2a0e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR03MB4677 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org If we ever did some msi related initializations, we need to call dw_pcie_free_msi() in the error code path. We also remove the IS_ENABLED(CONFIG_PCI_MSI) check for MSI init, because pci_msi_enabled() already has a stub for !CONFIG_PCI_MSI. Signed-off-by: Jisheng Zhang Acked-by: Gustavo Pimentel --- drivers/pci/controller/dwc/pcie-designware-host.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index a71b874ae3c0..acc9be5cf34a 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -445,7 +445,7 @@ int dw_pcie_host_init(struct pcie_port *pp) if (ret) pci->num_viewport = 2; - if (IS_ENABLED(CONFIG_PCI_MSI) && pci_msi_enabled()) { + if (pci_msi_enabled()) { /* * If a specific SoC driver needs to change the * default number of vectors, it needs to implement @@ -483,7 +483,7 @@ int dw_pcie_host_init(struct pcie_port *pp) if (pp->ops->host_init) { ret = pp->ops->host_init(pp); if (ret) - goto error; + goto err_free_msi; } pp->root_bus_nr = pp->busn->start; @@ -497,7 +497,7 @@ int dw_pcie_host_init(struct pcie_port *pp) ret = pci_scan_root_bus_bridge(bridge); if (ret) - goto error; + goto err_free_msi; bus = bridge->bus; @@ -513,6 +513,9 @@ int dw_pcie_host_init(struct pcie_port *pp) pci_bus_add_devices(bus); return 0; +err_free_msi: + if (pci_msi_enabled() && !pp->ops->msi_host_init) + dw_pcie_free_msi(pp); error: pci_free_host_bridge(bridge); return ret;