From patchwork Mon Dec 17 03:13:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Jain X-Patchwork-Id: 10732689 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2A9F114E5 for ; Mon, 17 Dec 2018 03:14:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 196CC29D3D for ; Mon, 17 Dec 2018 03:14:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 08526295FD; Mon, 17 Dec 2018 03:14:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE184295FD for ; Mon, 17 Dec 2018 03:14:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726378AbeLQDN7 (ORCPT ); Sun, 16 Dec 2018 22:13:59 -0500 Received: from aserp2130.oracle.com ([141.146.126.79]:57266 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726267AbeLQDN7 (ORCPT ); Sun, 16 Dec 2018 22:13:59 -0500 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id wBH3Dnnf156984 for ; Mon, 17 Dec 2018 03:13:58 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id; s=corp-2018-07-02; bh=V2DM5yrcljvWClVGq1P4iR3WvzqsGWdfHJS0RNGgUTU=; b=BieHuU6BFxGI1ZcY2twv5qdg/yPi6MSeoQg1feSY3xKLKXX8ZFaCXd6UVIOrTNorimdk I9Z4jYcI56cDjJYzpmSiLD6JXN1oCVqf2QrJBsDuyEbRZNoEpeqMguKKHLYieRS+1HgY c4HV70TGDkIQPrPZyvh8aLNeE6j8lvwvX1YYXGPcD79J60tA16R5Gf6uod5WzFeKcJSB H2/yaQC8pRIckFXMuR2lsfm9xmY71/h5YzFoSJw03gjzxe0tqdkMJhYtX9cryvNpDZ1g IEXQhuSVorsMLUwpFeXJqwMeBoBMx6tURsjtPqoV1ZrY8UWf2rbPPlcvqeX3alnvA67c Ag== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp2130.oracle.com with ESMTP id 2pcq4dkrgh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 17 Dec 2018 03:13:58 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id wBH3DugT028551 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 17 Dec 2018 03:13:57 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id wBH3Du1l006509 for ; Mon, 17 Dec 2018 03:13:56 GMT Received: from tpasj.localdomain (/157.49.189.238) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 16 Dec 2018 19:13:55 -0800 From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH 1/2] btrfs-progs: check for no result before using results Date: Mon, 17 Dec 2018 11:13:55 +0800 Message-Id: <1545016436-4137-1-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 1.8.3.1 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9109 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=899 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1812170029 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP User space understands the ioctl BTRFS_IOC_DEV_REPLACE command status using the struct btrfs_ioctl_dev_replace_args::result, and so userspace initializes this to BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT, so exclude this value in checking for the error. Signed-off-by: Anand Jain --- cmds-replace.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/cmds-replace.c b/cmds-replace.c index b30e6c781e64..42de4de8c031 100644 --- a/cmds-replace.c +++ b/cmds-replace.c @@ -296,6 +296,8 @@ static int cmd_replace_start(int argc, char **argv) } if (start_args.result != + BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT && + start_args.result != BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR) { error("ioctl(DEV_REPLACE_START) on '%s' returns error: %s", path,