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Fri, 29 Mar 2019 11:58:53 +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 4/5] PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify the code Thread-Topic: [PATCH v4 4/5] PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify the code Thread-Index: AQHU5ibHIJJqTWvLzUuMnrUhdu3x1g== Date: Fri, 29 Mar 2019 11:58:53 +0000 Message-ID: <20190329195112.11abef0d@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: TY2PR01CA0033.jpnprd01.prod.outlook.com (2603:1096:404:ce::21) 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: BZ7niUt8SEoFU8W60tVSqmrLEmH2543h/NThyXb+kNf3Jxi6eITEZAfbuaDfYxrwng71sgpKPfeIIQ8Bl4B6rB8035kVGrxbdbNGF/nONKgFlpEDjfURlKrbJmjTYI7d4yK3Qgf1bE4hmOwv8zIZmOUQd71EvSQ0Cq7jpMk2bWwA6YRiNFsW//ToE3CbxvocEn7zzEZ6D2GVUAfc/pKS06qnFwutBjOCa17lXUJUxLoFyYs45KI0S7stl4RrEZqoBzMJwT1EWFi5O8sVt+XgUV9xMNpu4Q+WSq0DGckX7tTxIcYKU5c83nqSDnhmImxsOejH0uZYlsJAkv4fJUV9R2MB6e3U1s9f2CH7Fkc+SzLRuLzQ31ywZWfncFOb6Uk3ESu2J9EM+m853pFbuSKWy/XB+7TAuXgGyf5O8pJEZ2Q= Content-ID: MIME-Version: 1.0 X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-Network-Message-Id: d9e84a40-cc01-4cab-9ab4-08d6b43de9e1 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Mar 2019 11:58:53.1666 (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 Use devm_pci_alloc_host_bridge() to simplify the error code path. Signed-off-by: Jisheng Zhang Acked-by: Gustavo Pimentel --- .../pci/controller/dwc/pcie-designware-host.c | 21 +++++++------------ 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index acc9be5cf34a..dcc7405aff9a 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -358,7 +358,7 @@ int dw_pcie_host_init(struct pcie_port *pp) dev_err(dev, "Missing *config* reg space\n"); } - bridge = pci_alloc_host_bridge(0); + bridge = devm_pci_alloc_host_bridge(dev, 0); if (!bridge) return -ENOMEM; @@ -369,7 +369,7 @@ int dw_pcie_host_init(struct pcie_port *pp) ret = devm_request_pci_bus_resources(dev, &bridge->windows); if (ret) - goto error; + return ret; /* Get the I/O and memory ranges from DT */ resource_list_for_each_entry_safe(win, tmp, &bridge->windows) { @@ -413,8 +413,7 @@ int dw_pcie_host_init(struct pcie_port *pp) resource_size(pp->cfg)); if (!pci->dbi_base) { dev_err(dev, "Error with ioremap\n"); - ret = -ENOMEM; - goto error; + return -ENOMEM; } } @@ -425,8 +424,7 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->cfg0_base, pp->cfg0_size); if (!pp->va_cfg0_base) { dev_err(dev, "Error with ioremap in function\n"); - ret = -ENOMEM; - goto error; + return -ENOMEM; } } @@ -436,8 +434,7 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->cfg1_size); if (!pp->va_cfg1_base) { dev_err(dev, "Error with ioremap\n"); - ret = -ENOMEM; - goto error; + return -ENOMEM; } } @@ -460,14 +457,14 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->num_vectors == 0) { dev_err(dev, "Invalid number of vectors\n"); - goto error; + return -EINVAL; } } if (!pp->ops->msi_host_init) { ret = dw_pcie_allocate_domains(pp); if (ret) - goto error; + return ret; if (pp->msi_irq) irq_set_chained_handler_and_data(pp->msi_irq, @@ -476,7 +473,7 @@ int dw_pcie_host_init(struct pcie_port *pp) } else { ret = pp->ops->msi_host_init(pp); if (ret < 0) - goto error; + return ret; } } @@ -516,8 +513,6 @@ int dw_pcie_host_init(struct pcie_port *pp) 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; }