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Hou" To: "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "bhelgaas@google.com" , "lorenzo.pieralisi@arm.com" , "jingoohan1@gmail.com" , "gustavo.pimentel@synopsys.com" CC: Roy Zang , Mingkai Hu , "M.h. Lian" , "Z.q. Hou" Subject: [PATCH 1/4] PCI/dwc: fix potential memory leak Thread-Topic: [PATCH 1/4] PCI/dwc: fix potential memory leak Thread-Index: AQHUbEREQvuwyxv4sEeimaudU2OseQ== Date: Thu, 25 Oct 2018 09:22:35 +0000 Message-ID: <20181025092229.28413-2-Zhiqiang.Hou@nxp.com> References: <20181025092229.28413-1-Zhiqiang.Hou@nxp.com> In-Reply-To: <20181025092229.28413-1-Zhiqiang.Hou@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK0P153CA0010.APCP153.PROD.OUTLOOK.COM (2603:1096:203:18::22) To DB5PR04MB1221.eurprd04.prod.outlook.com (2a01:111:e400:51c2::27) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.73] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DB5PR04MB0952;6:ylp+qWsSOrYbYrK47SHgRb2l+SG0W1Spv3bpLWie7uu9klneCDBsYTVNexhTEh/2FcuSy/OugGnoMULTlljkkgVrTOxzL0Jyv8DIzvNfa7qQ3fXbvKFtR9G17qA6wC4O69pZUzyyB+zpUN+4lH7BC17zX+IqCelHwRjm9XJvqBhRq60+CY4k16bnON9tGIvukKAk8+V7OHZZVILogAlfjFqdCbN6noiZLFV2s2lLxjJ25TdYOSVuQtpvR+UGPIY2jYoBhHIWFsWbe3XF66W3LXuboVCNEU0Se7VpzYGaoAc0ix5WQv/A9HqduWiGUBeDkZjUxPg8Op2yHzhzksgta1WXpCOQ/tzFDygXKRq3a3L5xqXasfwmgsTbCdhZJ2w5T5T01P+8S3naWHoLas6ANkZrrqxgPVDrHG8udtHEw1hOz6lBb3jSxUZBw0q7Rcu/+wXJJlbKL+hNoTHXdySgFw==;5:2iSnQ4w8L3NmhBdrGpnN5+QTZhQxUxeB447TflDBDYqxiUxTnsC2SkkvssNc8vz3dl2hTXDZn1SobwYSqemf0V389M+CEioNVVXznZimRzrXBrqFhjkuhExcBv720iA88ECQnal66b+tHc9APq/IVj+3P43GKvlruT+8zzud9+0=;7:oQBHTzMRGmGnFjjLIrVydt8SV2gLCfGz2XMoU9L/WS5yBk00XeVfDkoK+y6n/KA8u75XsGbiMilsY8tBCnbFAsrm59zBbcznjBhEI8IooX+g1S9mfiDu79+XEs48RdUezkNzx+UfflhmOFDXvTP59DfjYjOrm7ro743+CnDyk4eSVBuNFav6I3+c10Ct+CY/H/jYve+PnpT3eNBrvxsexCsZ+YLVJYbwPdX7JKYevCqF4rpYAeL+GtbgttBXxOrD x-ms-office365-filtering-correlation-id: 1aaa4840-1fae-4fb8-ae0a-08d63a5b6664 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989299)(5600074)(711020)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020);SRVR:DB5PR04MB0952; x-ms-traffictypediagnostic: DB5PR04MB0952: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(185117386973197); x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(3231355)(944501410)(52105095)(3002001)(10201501046)(93006095)(93001095)(6055026)(148016)(149066)(150057)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123558120)(20161123564045)(20161123560045)(20161123562045)(201708071742011)(7699051)(76991095);SRVR:DB5PR04MB0952;BCL:0;PCL:0;RULEID:;SRVR:DB5PR04MB0952; x-forefront-prvs: 083691450C x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(366004)(396003)(39860400002)(346002)(136003)(376002)(199004)(189003)(6512007)(6436002)(97736004)(6486002)(39060400002)(99286004)(81166006)(4326008)(81156014)(53936002)(106356001)(25786009)(105586002)(2900100001)(102836004)(11346002)(7736002)(8936002)(446003)(2616005)(14444005)(256004)(305945005)(476003)(186003)(478600001)(86362001)(8676002)(26005)(68736007)(2201001)(6346003)(486006)(6116002)(3846002)(386003)(6506007)(76176011)(66066001)(2906002)(5660300001)(36756003)(1076002)(14454004)(316002)(54906003)(110136005)(71200400001)(71190400001)(52116002)(2501003)(5250100002);DIR:OUT;SFP:1101;SCL:1;SRVR:DB5PR04MB0952;H:DB5PR04MB1221.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=zhiqiang.hou@nxp.com; x-microsoft-antispam-message-info: UWd3NPj7GTJ8fJ2RPOuyg1W9AU7drqEhhNpvZGX1ajuFYYBOoxU+GqC23UgaqJgBO7jLjqA1ZAczEasOAEm9ldQFj6PY38wVuV+8w9gIKVZCWLbMkz6wh34X6CxnHvcKTTcl1iORZE/jQFwUY3eZqgLlV1NNfc1sOHrgbwQLLAu7TzmLdCHEVvWb5MFDjWye1swsvsgafqASMR+R+T8jVYfzsyQGxdNCeTwal6xDB3i2aoR4piCwASsmMy3uldjz/fXAd277GZrsUhA6wxZH82ACAOXeeic08S6AS4WwBtHbe+R8Ser5jot4STJOU3Vzend8/HosGeKJ/r5LFV26R9uvk+ie20JYOdgXm2/sp3U= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1aaa4840-1fae-4fb8-ae0a-08d63a5b6664 X-MS-Exchange-CrossTenant-originalarrivaltime: 25 Oct 2018 09:22:35.9282 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB5PR04MB0952 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hou Zhiqiang Free the allocated pci_host_bridge struct when failed to get host bridge resources, and free the resource windows before free the bridge. Signed-off-by: Hou Zhiqiang --- drivers/pci/controller/dwc/pcie-designware-host.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pc= i/controller/dwc/pcie-designware-host.c index 29a05759a294..ecacce016489 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -353,7 +353,7 @@ int dw_pcie_host_init(struct pcie_port *pp) ret =3D devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, &bridge->windows, &pp->io_base); if (ret) - return ret; + goto error; =20 ret =3D devm_request_pci_bus_resources(dev, &bridge->windows); if (ret) @@ -502,6 +502,7 @@ int dw_pcie_host_init(struct pcie_port *pp) return 0; =20 error: + pci_free_resource_list(&bridge->windows); pci_free_host_bridge(bridge); return ret; } --=20 2.17.1