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Petersen" , Sasha Levin Subject: [PATCH AUTOSEL for 4.15 074/102] scsi: core: scsi_get_device_flags_keyed(): Always return device flags Thread-Topic: [PATCH AUTOSEL for 4.15 074/102] scsi: core: scsi_get_device_flags_keyed(): Always return device flags Thread-Index: AQHTsz5zsyVF6qFT20WzavJ+P5JhHQ== Date: Sat, 3 Mar 2018 22:24:52 +0000 Message-ID: <20180303222318.26006-74-alexander.levin@microsoft.com> References: <20180303222318.26006-1-alexander.levin@microsoft.com> In-Reply-To: <20180303222318.26006-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MW2SPR01MB06;7:trY2+ndnVJHawOfiCGfw7hY3trXeWFq0uog5DiZ+A0C5YCC/KTCTa5qj5kyRH3nCy8AxHrPpvonng0OCa9ubHCi8LLdWCg9hQ3JioYAnEoeMbpif4riTLYKLtcQIMSDq8bDGkAqE9z2TWlrm3itu0ebJGLm04dEFmpb7THzEksxehNeKrivTaECt1EL216CTpOB1sXN6X+f71fasU/xKU2A9aIn640Y89wXJQOv0MGJpT0ZjMeL3NTDSfxggcsPu x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: bfaff5dc-9c45-4ebb-7216-08d58155e21a x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(4534165)(4627221)(201703031133081)(201702281549075)(48565401081)(5600026)(4604075)(3008032)(2017052603307)(7193020);SRVR:MW2SPR01MB06; x-ms-traffictypediagnostic: MW2SPR01MB06: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171)(146099531331640); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040501)(2401047)(5005006)(8121501046)(3002001)(10201501046)(93006095)(93001095)(3231220)(944501244)(52105095)(6055026)(61426038)(61427038)(6041288)(20161123562045)(20161123560045)(20161123558120)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(6072148)(201708071742011);SRVR:MW2SPR01MB06;BCL:0;PCL:0;RULEID:;SRVR:MW2SPR01MB06; x-forefront-prvs: 0600F93FE1 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(376002)(366004)(39380400002)(396003)(346002)(39860400002)(189003)(199004)(68736007)(2900100001)(97736004)(107886003)(36756003)(1076002)(76176011)(86612001)(6666003)(6116002)(99286004)(22452003)(10090500001)(3280700002)(105586002)(2950100002)(3846002)(26005)(2501003)(6506007)(4326008)(305945005)(25786009)(7736002)(66066001)(54906003)(86362001)(575784001)(8936002)(72206003)(3660700001)(6512007)(110136005)(14454004)(5660300001)(5250100002)(478600001)(102836004)(106356001)(8676002)(81166006)(6486002)(186003)(316002)(10290500003)(53936002)(6436002)(2906002)(81156014)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:MW2SPR01MB06;H:MW2PR2101MB1034.namprd21.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:1;LANG:en; x-microsoft-antispam-message-info: Ke7BENncpvl5/ZPy7GDCcneAZm18t/AWX5nzjmtmbH3GLmToErmLWJeLxc0kQqbfgWI4Ht5tk5bAaUHyAzKDP86o2A4n2CtY3ZSsdTkNUZTJW2XMsfcJNQPbSTfvShzC6ueQNdu8wwXo8KVmeMcBiYuVwHfhcWGu5VagFsjgAtQ= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: bfaff5dc-9c45-4ebb-7216-08d58155e21a X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Mar 2018 22:24:52.4003 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2SPR01MB06 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Bart Van Assche [ Upstream commit a44c9d36509c83cf64f33b93f6ab2e63822c01eb ] Since scsi_get_device_flags_keyed() callers do not check whether or not the returned value is an error code, change that function such that it returns a flags value even if the 'key' argument is invalid. Note: since commit 28a0bc4120d3 ("scsi: sd: Implement blacklist option for WRITE SAME w/ UNMAP") bit 31 is a valid device information flag so checking whether bit 31 is set in the return value is not sufficient to tell the difference between an error code and a flags value. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Johannes Thumshirn Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/scsi_devinfo.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index dfb8da83fa50..b12e226eb448 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -590,17 +590,12 @@ blist_flags_t scsi_get_device_flags_keyed(struct scsi= _device *sdev, int key) { struct scsi_dev_info_list *devinfo; - int err; =20 devinfo =3D scsi_dev_info_list_find(vendor, model, key); if (!IS_ERR(devinfo)) return devinfo->flags; =20 - err =3D PTR_ERR(devinfo); - if (err !=3D -ENOENT) - return err; - - /* nothing found, return nothing */ + /* key or device not found: return nothing */ if (key !=3D SCSI_DEVINFO_GLOBAL) return 0; =20 --=20 2.14.1