From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AC449C433F5 for ; Thu, 10 Mar 2022 11:44:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DqfmfUr8Qix+SejuKH5+lv6uSCb4sb64My/7OgjuUE4=; b=r9GHo+LjvX3rgK v8A568K+WcSC/M+Cw6kDzoMsO7gxzeNVz3vRi2Xv9xtjc12oH6nV44F6VSoeJaDl/d7U7b4Sn0N5j xREsjKa1yHHWIXynspUhsLMDg6ZJFcgBScTS/x0jwE1TLg7JQg17LXy9D/lNYEmheV9o6/Jx6r7YK dXyRaWzpaSuhJn3cLU5mTRbBm1ZoIWhj9Jjbq2ZW7qBVLntzxJWAGaKr31/oZvPtAY9mpq3KZdfxr L20q4+Jzb4wfU+ad9eJBRDbgdQ7+jgTlRJm2f1IurruGRxm8mkDD/SUZmT5iyAeGbvK8YzUa6rYPZ RrYYZLoxXeQzIQj8k84Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nSHBo-00Ceib-Ml; Thu, 10 Mar 2022 11:42:41 +0000 Received: from mail-sn1anam02on2070f.outbound.protection.outlook.com ([2a01:111:f400:7ea9::70f] helo=NAM02-SN1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nSHBJ-00CeWI-TP for linux-arm-kernel@lists.infradead.org; Thu, 10 Mar 2022 11:42:11 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=KXT5WyL6I62ZiOrAiOifuf5tPMZ7CQU+nRpTZ7A0xextQy33s6dxJJuJMaI6IG8NhFAmAiFiwGJskHnkC4Ixui/gFDfNpExv1XME/wH6z+bXfd1v8g+PGeuxdKpm3/ux9GcKByfRrwTnhUO2b5XlD5E6qOLKHswcLdtNAEL9ZUCvOkMenZX9ipGy+g8My+U1c43gCmOpZx7psd0KZ6H5fx4CGvs/9WHGaUKyVR6S9VfiEZHn5O9JHDCVLOu/Zy4zbXKg6nvJFUrMF3brYrqIg0HzZOWtQiP01YT+LIDZHZteIWzvf2I3mU7KljPbiY7U7WA3KDWhfmwuS2MMl5U9TQ== 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=Wjv6CnSj3V2zB6DLMhx0xgB/PBPemXBO36wqpNHB844=; b=UB3ZZdzjlnD7gVr5GMIkEQSLgiBY0sPn+YGLfzGgHbSr19YjN89D5v7tFsMJ1IJmnQ0LCe5SDAK+EjZwz7zQVIwXwxHPQXP5m0+BP6PYedaCNtvRhh/niJQTxIyjFE0A85i6iyj/62Ul2nQ7R2030opF6kLOonZ3vKjzHP7LyBpJSc7tgRcor50e95S7IaYQwmQCyJ5853YbSRqgwAOw45Coarivk1wXSj1x8zrspRj/FI//XQlag4hZOT0GVMsYZW/2wNkfCDMLroSa6k6yt6XuXTfVjcKXJ4abzhGq73oyd5VBCrqBZZpLGYXUkF8EXllUqdOSjn9FjQyFc7e54g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=os.amperecomputing.com; dmarc=pass action=none header.from=os.amperecomputing.com; dkim=pass header.d=os.amperecomputing.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=os.amperecomputing.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Wjv6CnSj3V2zB6DLMhx0xgB/PBPemXBO36wqpNHB844=; b=BpfuAd0d8VlshMLiJ9HxODYsd1UMoLp+Q/XY0TAI8J6mjhzPsOpmlWA6LllOfqJxRH3QgHz6kRfGpP2Fto7FXP8LMSx2AO1p/CcaABaEejC5Dokv54sRgYjlOjb3XXo3T8Wnhr8LbeGp7z7pl/lvGDkza9tNt0LhnBdvXsePjj4= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=os.amperecomputing.com; Received: from SJ0PR01MB7282.prod.exchangelabs.com (2603:10b6:a03:3f2::24) by DM6PR01MB3771.prod.exchangelabs.com (2603:10b6:5:82::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5038.16; Thu, 10 Mar 2022 11:42:04 +0000 Received: from SJ0PR01MB7282.prod.exchangelabs.com ([fe80::cd24:39ed:7042:46d6]) by SJ0PR01MB7282.prod.exchangelabs.com ([fe80::cd24:39ed:7042:46d6%6]) with mapi id 15.20.5038.027; Thu, 10 Mar 2022 11:42:04 +0000 From: Quan Nguyen To: Corey Minyard , Rob Herring , Krzysztof Kozlowski , Joel Stanley , Andrew Jeffery , Brendan Higgins , Benjamin Herrenschmidt , Wolfram Sang , openipmi-developer@lists.sourceforge.net, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, openbmc@lists.ozlabs.org Cc: Open Source Submission , Phong Vo , "Thang Q . Nguyen" Subject: [PATCH v6 3/4] ipmi: ssif_bmc: Return -EFAULT if copy_from_user() fails Date: Thu, 10 Mar 2022 18:41:18 +0700 Message-Id: <20220310114119.13736-4-quan@os.amperecomputing.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220310114119.13736-1-quan@os.amperecomputing.com> References: <20220310114119.13736-1-quan@os.amperecomputing.com> X-ClientProxiedBy: SG2PR02CA0125.apcprd02.prod.outlook.com (2603:1096:4:188::13) To SJ0PR01MB7282.prod.exchangelabs.com (2603:10b6:a03:3f2::24) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d611fabd-8eee-4196-a55f-08da028aff19 X-MS-TrafficTypeDiagnostic: DM6PR01MB3771:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:SJ0PR01MB7282.prod.exchangelabs.com; PTR:; CAT:NONE; SFS:(13230001)(4636009)(366004)(38100700002)(38350700002)(83380400001)(186003)(26005)(107886003)(921005)(54906003)(66946007)(110136005)(2616005)(316002)(6512007)(1076003)(52116002)(2906002)(6506007)(6666004)(86362001)(66476007)(66556008)(8936002)(7416002)(5660300002)(6486002)(508600001)(4326008)(8676002); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?BefJ29iVA7lzH+Tc0cl5Wwn/hWvI8l4RxyxBQLpFKF8i9y6QQxyHSuth/y28?= =?us-ascii?Q?gVfy5UxfB491HizQZWEDZbgrKujFVlql6uVQ/RzFgRS/Q0FB9886GqOCIh15?= =?us-ascii?Q?kCTQF7uMSgraTCs1+E9qsM92gklfyqDdJ6yXSdcpgISEGNT78OVKMUeUYZmA?= =?us-ascii?Q?2RFNftQN5YJDyiAkb5fCWjOrvHpqYRfWSV/5iqobIgHakB77j+HGSEtPqt/X?= =?us-ascii?Q?L9ICWJWh+7HJR67ybXjr/kWLZXdyD16PzKhDerfkSXNpiRv+2ynw87dQCZ6y?= =?us-ascii?Q?uS95MFMDz4quTHW0CUPN7IpWaW0/QPFdVwtg6Z1S43Kmj3BT8R/JzK3RewC3?= =?us-ascii?Q?UazP7P/JC7OtLP4/wk7fXiSUa2ugmaqfax5QRF2qOzvZ8GnhbbpUNn0VWjW5?= =?us-ascii?Q?dUCLiiT7CQhCQVrgjZPyybsApszkXVizoAj5I+KCZpPINWyoaR2kY91yN6ju?= =?us-ascii?Q?DbyNf8O5n/bEmQt7Niry4DQzlN0ZisAXv+H0sU9bl/WrvIh4+pi+VPR0J9lW?= =?us-ascii?Q?MD4QkmstqH6WjnW1Qey1Q6K6oggdnwe7tnP2FvCD9UlcB8gHY7QAXuYC67lI?= =?us-ascii?Q?2rpeFG5pAKzBmB4BYr+7g18zHkpeNwNV4wG2s/Wek1xqioK20P0rrDHkf4Vv?= =?us-ascii?Q?AdAvI1ZoGi4ZxUXbxJLt8RvH+yHP9338MOnBtKd+jhkMv2t46Qkys9RD/7Lz?= =?us-ascii?Q?HgPUvHndKnaPC/mCiEz1wVqVuEVxiLmwJHrG8Qes5qmWbRCjaWpe5bbugQrA?= =?us-ascii?Q?5Q+R7mEjIz/5FEN5t5f3noh+tSs8qq7tNazxNBaeDPq5cFKqL+vWADwFqVVx?= =?us-ascii?Q?aTVWAgKJLsO5X5qXIV7qXc64t6YWxEuE1qKDIlo6i4j5LCAfMbaPdH27BMYf?= =?us-ascii?Q?ngoT/6bzc76YOHEr0iXrJAQ8k82VX/3ltwZ3Va2gtFmMcbrdLU0u4VwgCeBn?= =?us-ascii?Q?pc7Rf4T5VuJU7DpS8EiI///Rp9SWHqhB164jtKl4mVF/eWhGm/JXxJ4D7SA1?= =?us-ascii?Q?Mim731gGz2C2I1dyTNywGwlRMorzSkvgLVyNaA9BUUGcdJcWEwVO/yTPftQb?= =?us-ascii?Q?8QMGYS5cG1vOzzjLtmnyTzXqYpEe+f0SuMHlk4HOzX0OTwPnXA2ckn4ritr1?= =?us-ascii?Q?ioaTlob7fLcUHX27VephVAq315dFQTnBU0CWVZ/AUYid4jUeVBo8Q2AYY3Yt?= =?us-ascii?Q?Vwir7gq9moyDMl/sLhPsefP+N1C7WnUkmKceNuzi9fxUo3yRsdbOUnceZzn3?= =?us-ascii?Q?9mZGWC05dtAYDFXdQETOhtngLaS4Jl1YuwCmoVu7F3yNB09V51EnJhMz8WCW?= =?us-ascii?Q?ZZlcLQCMrQeznC3fEhmWeaQOxB4PGXoMmA5S3YFZlYpoHEQdaPtU7TT6efmS?= =?us-ascii?Q?geLFqJuC2rRtvXDQnnkCmSd/g8c4tdIA1mbI9TI0jN9DqVLBsR4so9/uqXf0?= =?us-ascii?Q?fe2y9uudYuisPlb8as617S9Xc4g+X1zRaO61RFxODPb/etK2SzuDvfd7FT7Z?= =?us-ascii?Q?FkUpjXSG8G7sXhRihGcKO2F7AvmC21uVVX6dpyLPCbat1gG5Io5Bvu3309rX?= =?us-ascii?Q?Yg6N/54b9SqzXUmXw9klFjwal5XEMN2LDL32BhUHAvoojpPt9teeeyLsNI58?= =?us-ascii?Q?PFHaGgfHszgaeKfx4sTt6HsXHKrq2zCllO13hJUYmCzsvFJV1FUysqqoekbq?= =?us-ascii?Q?XuABkSua2acs46PzD0U/fRrNYa8=3D?= X-OriginatorOrg: os.amperecomputing.com X-MS-Exchange-CrossTenant-Network-Message-Id: d611fabd-8eee-4196-a55f-08da028aff19 X-MS-Exchange-CrossTenant-AuthSource: SJ0PR01MB7282.prod.exchangelabs.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2022 11:42:04.2627 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3bc2b170-fd94-476d-b0ce-4229bdc904a7 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: TNUhbl8uD63EvAfj4sc0kNU9N19a/JQFOlQEhdOjrYdbB2pB5pvO2WWXcWraPKmIRX4jCqFk1idU1mYsLfGbdjV/hE+HMOKVNjoY9vZuhCY= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR01MB3771 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220310_034210_025272_EB442DF5 X-CRM114-Status: GOOD ( 10.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Dan Carpenter The copy_from_user() function returns the number of bytes remaining to be copied but we should return -EFAULT here. Fixes: 501c25b59508 ("ipmi: ssif_bmc: Add SSIF BMC driver") Signed-off-by: Dan Carpenter Signed-off-by: Corey Minyard Signed-off-by: Quan Nguyen --- v6: + New add in v6, thanks Dan for the patch [Dan] drivers/char/ipmi/ssif_bmc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/char/ipmi/ssif_bmc.c b/drivers/char/ipmi/ssif_bmc.c index 62db97773654..91ac2cae756e 100644 --- a/drivers/char/ipmi/ssif_bmc.c +++ b/drivers/char/ipmi/ssif_bmc.c @@ -87,9 +87,8 @@ static ssize_t ssif_bmc_write(struct file *file, const char __user *buf, size_t if (count > sizeof(struct ssif_msg)) return -EINVAL; - ret = copy_from_user(&msg, buf, count); - if (ret) - return ret; + if (copy_from_user(&msg, buf, count)) + return -EFAULT; if (!msg.len || count < ssif_msg_len(&msg)) return -EINVAL; -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel