From patchwork Fri Mar 29 05:49:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Jain X-Patchwork-Id: 10876415 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 2A44318FD for ; Fri, 29 Mar 2019 05:50:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1602128B38 for ; Fri, 29 Mar 2019 05:50:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0A19E28E9A; Fri, 29 Mar 2019 05:50:04 +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 B0EAE28EC6 for ; Fri, 29 Mar 2019 05:50:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728046AbfC2FuC (ORCPT ); Fri, 29 Mar 2019 01:50:02 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:41230 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727294AbfC2FuB (ORCPT ); Fri, 29 Mar 2019 01:50:01 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x2T5mukp181905 for ; Fri, 29 Mar 2019 05:50:00 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=yzJLdcpX7tX2JrgTkyNBBdl3hdj/JhoLxJ+SUKb8FPY=; b=F5gcevTtqOLJNU01esxFFxuKGE7kqUU4qrIY+ISCSyPvZcJ7uLE7ydXA4kz+BN33/U1r 2gbdJCfYvnhcudetfV8hJbvq5nPj/DNWWFzbuMDBvyGcoKWtPEaGoA1NDhkzVV7cym3u 9m7uc8GrwZ9vkaZJ0PD8++WOuzd8C9aqBNCzzuauViHwYViOlNM7U737eRY7q2OCfmW7 WspMsXYl/bBt/16lhXCrRhotlZUDxj4Waqj32BM3eUV05H8YoxlUtviCUI0siwo53jLj BPDTJuEUTG1GgeG0lGiGlAGR2I7zqMjmMGI8vqmC7EP3NhBAYxokjuonqbOKOeuz0biJ 3g== Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp2120.oracle.com with ESMTP id 2re6djteee-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 29 Mar 2019 05:50:00 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x2T5nx4J020395 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 29 Mar 2019 05:49:59 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x2T5nxAJ029360 for ; Fri, 29 Mar 2019 05:49:59 GMT Received: from tpasj.wifi.oracle.com (/192.188.170.109) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 28 Mar 2019 22:49:59 -0700 From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH 2/2] btrfs-progs: scan: pass blkid_get_cache error code Date: Fri, 29 Mar 2019 13:49:54 +0800 Message-Id: <1553838594-26013-2-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1553838594-26013-1-git-send-email-anand.jain@oracle.com> References: <1553838594-26013-1-git-send-email-anand.jain@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9210 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903290043 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 blkid_get_cache() returns error code which is -errno. So we can use them directly. Signed-off-by: Anand Jain --- Ref: blkid_get_cache() code: https://github.com/karelzak/util-linux/blob/master/libblkid/src/cache.c#L93 https://github.com/karelzak/util-linux/blob/master/libblkid/src/blkidP.h#L307 utils.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/utils.c b/utils.c index 9e26c884cc6c..c6cdc8f01dc1 100644 --- a/utils.c +++ b/utils.c @@ -1994,9 +1994,11 @@ int btrfs_scan_devices(void) if (btrfs_scan_done) return 0; - if (blkid_get_cache(&cache, NULL) < 0) { - error("blkid cache get failed"); - return 1; + ret = blkid_get_cache(&cache, NULL); + if (ret < 0) { + errno = -ret; + error("blkid cache get failed: %m"); + return ret; } blkid_probe_all(cache); iter = blkid_dev_iterate_begin(cache);