From nobody Wed Apr 24 17:48:32 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0DB7EC433F5 for ; Mon, 15 Nov 2021 03:51:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DE34E61BB5 for ; Mon, 15 Nov 2021 03:51:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237155AbhKODy3 (ORCPT ); Sun, 14 Nov 2021 22:54:29 -0500 Received: from mail-eopbgr1300107.outbound.protection.outlook.com ([40.107.130.107]:18027 "EHLO APC01-HK2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S237143AbhKODsT (ORCPT ); Sun, 14 Nov 2021 22:48:19 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=XejEjo4G7taYJLpI7VmIl0L5yIZefLFD7yMP6k3O34FINIt6gZbmy6jBhsKqG4RoZXXaN0BIfBYqio2dnr+LysCeeFa7JJyAUe9nft8Pn3ukcfxLGtYMPV1cTGo/itcEUJ0SQydC9FXkV/FFWApTdyqSIjFmkGw4l7D2H70eJhSLqhGSoWxV1FlKV/2bFPGbX0gFui02jN7xcy/SvvI8KAKc4Hrgh5tQ1fs8GEe+O1n9+gC3C3fAeAXpFv1a+hmBnBmtIVQOck4mHxzmd3++boTie7FWsZFL00wkJ0Ud+vnCQ+04hbvxo/aStjkwZYnm9yiRNHf5wRJqgvNUv4TxTQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=H6tXfdxfySNkxFS2uSS5Bbm+E7RmyTX8PsfIxYZSWwk=; b=U4JHpSrajWxe0NXbKbcz2e0lIRF6VakWUc4GoudrLjePCC3f29CIXq9ZSLz+snssZp7gJyO+406blDOdNp+Wjbo7kdCsaGcXHHSd0WrcnbSNBs2wSW13jqPE8xzLsqdvTsbKBNC4iW8EPVZgUTdQZ+WBSt0v/xJAq4QtYU7J8aDo5OJmVo1HPIcxQLdThNIw+lXAexOwAS0gi3MTWcCImnd06ZHPezj33tIGLIyzmylYfg69xoHA1uM+tj8ta8tzXff5rY0/I38UCzGaasOWyV///rTWLC5uCRlwf13hff/qm7IJ4zVzWFqCCHc1wa1/36+8LQiUH2uMtk20qWSy4w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vivo.com; dmarc=pass action=none header.from=vivo.com; dkim=pass header.d=vivo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vivo0.onmicrosoft.com; s=selector2-vivo0-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=H6tXfdxfySNkxFS2uSS5Bbm+E7RmyTX8PsfIxYZSWwk=; b=XvLr3dlsUAjU8Kx4vMSZHL7adO+Ce/k0h8HPU5g9T2FGs1x3Bxm/zFN+KjyNwZxahOyAh1N3k+xDfC/k8U4RYv6MZVtlC4Ugo8E8NbO5bVphD8Dm+PWD5CjkWRd1r7pC8s9ajqL4PYFTPInjNidFifNXbZJX/jvb940RbulmlQs= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vivo.com; Received: from PSAPR06MB4021.apcprd06.prod.outlook.com (2603:1096:301:37::11) by PSAPR06MB4311.apcprd06.prod.outlook.com (2603:1096:301:81::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4690.22; Mon, 15 Nov 2021 03:45:22 +0000 Received: from PSAPR06MB4021.apcprd06.prod.outlook.com ([fe80::395a:f2d7:d67f:b385]) by PSAPR06MB4021.apcprd06.prod.outlook.com ([fe80::395a:f2d7:d67f:b385%5]) with mapi id 15.20.4690.027; Mon, 15 Nov 2021 03:45:22 +0000 From: Bernard Zhao To: Oleksandr Andrushchenko , David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org Cc: Bernard Zhao Subject: [PATCH] drm/xen: fix potential memleak in error branch Date: Sun, 14 Nov 2021 19:45:03 -0800 Message-Id: <20211115034504.4993-1-bernard@vivo.com> X-Mailer: git-send-email 2.33.1 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: HK2PR0302CA0001.apcprd03.prod.outlook.com (2603:1096:202::11) To PSAPR06MB4021.apcprd06.prod.outlook.com (2603:1096:301:37::11) MIME-Version: 1.0 Received: from ubuntu.localdomain (203.90.234.87) by HK2PR0302CA0001.apcprd03.prod.outlook.com (2603:1096:202::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4713.16 via Frontend Transport; Mon, 15 Nov 2021 03:45:21 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 22c8cce4-7549-44ce-6396-08d9a7ea59d4 X-MS-TrafficTypeDiagnostic: PSAPR06MB4311: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:525; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: Hf00m0xBSHTiEOwFwIhHEVeJZGrC54oXIB9H+HeyaiaIuIRuxYcDRWg11S6c3i+OtlPpfr3SVsoiVVpikdIGdmYpLT4IvdhEOP9arRAt2FFx1s0yJK/7J1Wr7qfk6VWTMhKBtulcUHM4p3jX8GeV9VagRQlptpLTvsnWsQvi15jSxX6l+vnQCYE1/yTGaqlnduhy0eOhKQ+qnLRArALAAH8Cr2fcxob1kQMyvdll80xqlSXcib4+2kxws3WJyXyRUrmHABhNSB6qa2QAO3kObpL29cYGki1d6NJNGBUSAtf8co0hHY3H1WYTUWGGHFOPciilBHDdGkAjQ7FYI/EGlOJsJ7P020KSFiedXfqYXU8aBz3NzSKxTBxUf03LYiaszXHILAfAoqEfFfH4cnc6DjTJrkCTnnLXKbYHSQBDAydLUQjQUAamNS+wcVArGGny/6/SrEpzhoiwMEdDJ4IGwely/C6lihNMvm7DG7Pl3m5PK0WhWhCUD45JZX3C634Kag0s3d4/eCGT/2+BQbsE7ovcw0x7mAbpp/Jy81vUfek+Q2J+gfRF88pyV7O26qBZXISQl/G1mpX3meAkbNtcQYy0HbXyJ6rPK2Z5XSeV4EIZ5nqYd9oieA1U/HfepkvArQhwqhMqtnubnTmkpGw9MApLYkvZg5nZDnjRebTh+eG/3tWPoT/srDGvny1rqGdBu1i0Df5tdRRnutZxwqlJ/g== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PSAPR06MB4021.apcprd06.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(366004)(186003)(38100700002)(110136005)(66946007)(6486002)(1076003)(38350700002)(66476007)(66556008)(4326008)(8676002)(107886003)(6506007)(5660300002)(6512007)(6666004)(83380400001)(316002)(2616005)(26005)(8936002)(52116002)(86362001)(956004)(2906002)(36756003)(508600001);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?Y+4XRGWKmtBYwDtpF/WrRip0oJbSVlKLtIFmpQoY8mXkAtq1DuheOo5ifgFg?= =?us-ascii?Q?60uO6fPDzyqXN3lsavI9hmgJPLBSzNzutRVsxzV1FqRrgoM764DLcYvEqF2Q?= =?us-ascii?Q?j41N63oUl69Ju1LIvMF8PUCDOThUCFvgl4rBpskVMjGwyJBneTnoKrrm1svT?= =?us-ascii?Q?09enKCp+JXN/A8ohiW3Vd4qaB4G6kEdvfhJXOcsP+U0qkhFtBfr4RyFn2Ixk?= =?us-ascii?Q?/xf0CSpUNPZeUizgPgs2qk9MskUtQwL+/khiuZqn55hH/w8nVfkOezPo7O8a?= =?us-ascii?Q?vHqBcibqfSfp28oPebVsPqHKLbJsAwTPiXHAap0vyrrOy4h5Z9EjSeOKjzgx?= =?us-ascii?Q?ddZFnX5wpKNf49cbdZ4kopjEivZUW3SNu2KIQXpFYuXZ81lBipmaAEdLrWdg?= =?us-ascii?Q?j3iBFOt743nMMxbKTme6XykIWC9UVEwykHKJX0/z6jNXSA1GIJF7H9/ild6s?= =?us-ascii?Q?uU8tE1dpkRcU+WU3ZNPyesT/mUMkR9/428L8r5XGu40g/juOxN9hLyydf9YO?= =?us-ascii?Q?4KbGXOFA6QlL2Y0+gB8VEUydxlcgISKsW6JzwbmW0kk0XNBH+ASElLtUcllP?= =?us-ascii?Q?yFKC30Y5dp9duWS6V209fjYhYKZ0VM/J/zcC03dpL2enj8HkkAwPzFDISlrp?= =?us-ascii?Q?9i7R3cfhBZpwxTUrbONFwhOjQ6VIGKhSvGATK6LhBaJ3OThvqKfq//5x3VRj?= =?us-ascii?Q?WimCbUyB+pi2oNvpssiKgYhEnucxPhSQGnnvatwY/NeBGTb/ingmKJcI2Hql?= =?us-ascii?Q?YZq6/bzTlYxLnnV3Caj4LCsxkhEgiHZppFXeOVq0DUSxSIk7GZ5zyF5g/Qlm?= =?us-ascii?Q?U5JMorPIMXqrllnLNNuFaixoXAl8HHVPRP6vvzJ7SZLsDKrcrfmM4JMws8gz?= =?us-ascii?Q?3f79Ssn/9AqjjIyCh7qTT5+o1YwcM4ldtS20z108ZJmgGhko3NXWa55DPhaz?= =?us-ascii?Q?G/vcYlpRgVNSWExZDXPwo9iJLGNPMTmomhx6v8bp02vM/7waQYQ9tBX5+gf6?= =?us-ascii?Q?tVDwbIoMWSKLZQB2O2BJFSKxW6lt035Em+pVYAyWHBgHl62Bpj9OzSLXSre+?= =?us-ascii?Q?FNPmVD9nj7XoIqTtWzj9A5ceDITGALZMh2IL11vVOYwU3VVDNc0sy6FR+HQe?= =?us-ascii?Q?mgyHJdoV+nW4PA5Xj9pFvu5oQJYHyjEZgKs2F7q7dmqGxYbti4ylej2TRNeJ?= =?us-ascii?Q?AVQ81NJJPxAHTTO5t8H197xFah1EZ+35pPPbJGw9byQHGcHZBfmpHj+wbKbs?= =?us-ascii?Q?Zz2p+zcxck+CR1iNAPZzUtSmgWLGe10m9F1CEG32jndNehm6SP68CyESzvxU?= =?us-ascii?Q?o430PC1wyNz7eJCEQSonbqZNPr6iNz4FDBF62tBASVeKEYyXWo5yXOQnBk0l?= =?us-ascii?Q?WlhXRTA8Wv228FfE1AExd2V+CjuBwl0jAXaEj/uSLJ4AXlOylDDpYsjE6c5I?= =?us-ascii?Q?xe1d6hn6ovyA/eMKgKmX/EPLa0YQ3+v2JGBeOA6o269BUXCx2Dbs3CDPm9RL?= =?us-ascii?Q?VjWQk7HpsqOiSIMTqs+ciu1DJNDlKG3sC1+v6szc8NsPZJbK5OAEl2+dP6Up?= =?us-ascii?Q?eCdCH0YWaDWriKgbJr4MTijibfOANgP39MecdOWLzLDAL2zcBdME8o5mcVUd?= =?us-ascii?Q?yQbbk6CKUf5xC6NaAdkD1is=3D?= X-OriginatorOrg: vivo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 22c8cce4-7549-44ce-6396-08d9a7ea59d4 X-MS-Exchange-CrossTenant-AuthSource: PSAPR06MB4021.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Nov 2021 03:45:22.2575 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: C2Z64cDvLYrQC05OYDq4Lxvf27U3rbLOC0x1EDJaFp6GTKAPV7VXyndtPlTbuDcGweskFoT0liqYjCAUEFRP+Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PSAPR06MB4311 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In function xen_drm_front_gem_import_sg_table, if in error branch, there maybe potential memleak if not call gem_free_pages_array. Signed-off-by: Bernard Zhao --- drivers/gpu/drm/xen/xen_drm_front_gem.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/= xen_drm_front_gem.c index b293c67230ef..732c3eec0666 100644 --- a/drivers/gpu/drm/xen/xen_drm_front_gem.c +++ b/drivers/gpu/drm/xen/xen_drm_front_gem.c @@ -222,15 +222,19 @@ xen_drm_front_gem_import_sg_table(struct drm_device *= dev, =20 ret =3D drm_prime_sg_to_page_array(sgt, xen_obj->pages, xen_obj->num_pages); - if (ret < 0) + if (ret < 0) { + gem_free_pages_array(xen_obj); return ERR_PTR(ret); + } =20 ret =3D xen_drm_front_dbuf_create(drm_info->front_info, xen_drm_front_dbuf_to_cookie(&xen_obj->base), 0, 0, 0, size, sgt->sgl->offset, xen_obj->pages); - if (ret < 0) + if (ret < 0) { + gem_free_pages_array(xen_obj); return ERR_PTR(ret); + } =20 DRM_DEBUG("Imported buffer of size %zu with nents %u\n", size, sgt->orig_nents); --=20 2.33.1