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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 997DCC2D0DB for ; Wed, 22 Jan 2020 15:55:28 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 52E9921835 for ; Wed, 22 Jan 2020 15:55:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 52E9921835 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 482qk60z75zDqLt for ; Thu, 23 Jan 2020 02:55:26 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=vaibhav@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 482qgr5XrxzDqSM for ; Thu, 23 Jan 2020 02:53:28 +1100 (AEDT) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00MFocYj081317 for ; Wed, 22 Jan 2020 10:53:26 -0500 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0a-001b2d01.pphosted.com with ESMTP id 2xp4gjq0tv-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 22 Jan 2020 10:53:25 -0500 Received: from localhost by e06smtp04.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 22 Jan 2020 15:53:20 -0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06avi18878370.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 00MFrI2C40894872 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 22 Jan 2020 15:53:18 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8D98D4C040; Wed, 22 Jan 2020 15:53:18 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CC44C4C044; Wed, 22 Jan 2020 15:53:16 +0000 (GMT) Received: from vajain21.in.ibm.com.com (unknown [9.199.33.50]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 22 Jan 2020 15:53:16 +0000 (GMT) From: Vaibhav Jain To: linux-nvdimm@lists.01.org Subject: [PATCH] libnvdimm/bus: return the outvar 'cmd_rc' error code in __nd_ioctl() Date: Wed, 22 Jan 2020 21:23:04 +0530 X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20012215-0016-0000-0000-000002DFBDC5 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20012215-0017-0000-0000-000033426A16 Message-Id: <20200122155304.120733-1-vaibhav@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-01-17_05:2020-01-16, 2020-01-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=638 clxscore=1015 impostorscore=0 phishscore=0 mlxscore=0 suspectscore=1 spamscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-2001220141 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vaibhav Jain , dan.j.williams@intel.com, linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" , Vishal Verma Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Presently the error code returned via out variable 'cmd_rc' from the nvdimm-bus controller function is ignored when called from __nd_ioctl() and never communicated back to user-space code that called an ioctl on dimm/bus. This minor patch updates __nd_ioctl() to propagate the value of out variable 'cmd_rc' back to user-space in case it reports an error. Signed-off-by: Vaibhav Jain --- drivers/nvdimm/bus.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index a8b515968569..5b687a27fdf2 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -1153,6 +1153,11 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, if (rc < 0) goto out_unlock; + if (cmd_rc < 0) { + rc = cmd_rc; + goto out_unlock; + } + if (!nvdimm && cmd == ND_CMD_CLEAR_ERROR && cmd_rc >= 0) { struct nd_cmd_clear_error *clear_err = buf; -- 2.24.1