From patchwork Fri Apr 29 15:11:17 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Wei Liu X-Patchwork-Id: 8983841 Return-Path: X-Original-To: patchwork-xen-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 01E719F54E for ; Fri, 29 Apr 2016 15:13:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3ED6C201ED for ; Fri, 29 Apr 2016 15:13:29 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4FA252021B for ; Fri, 29 Apr 2016 15:13:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1awA4n-0003CF-Rt; Fri, 29 Apr 2016 15:11:29 +0000 Received: from mail6.bemta6.messagelabs.com ([85.158.143.247]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1awA4m-0003BC-6d for xen-devel@lists.xenproject.org; Fri, 29 Apr 2016 15:11:28 +0000 Received: from [85.158.143.35] by server-2.bemta-6.messagelabs.com id C3/A5-09532-F9973275; Fri, 29 Apr 2016 15:11:27 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrCIsWRWlGSWpSXmKPExsXitHRDpO78SuV wg13bhSy+b5nM5MDocfjDFZYAxijWzLyk/IoE1oybn0sL9rFV/P14mLWBcTNrFyMnh4SAv8ST u/vYQGw2AWWJn529YLaIgJ5E04HnjF2MXBzMAj2MEjsabrKAJIQF3CXa735lArFZBFQlVneeY gexeQWcJQ4sXMQGMVRO4vzxn8wgNqeAi8SPr/MYQWwhoJqNBz+yQtQLSpyc+QRsJrOApkTr9t /sELa8RPPW2cwQ9QoSHdOPMUHM5Ja4fXoq8wRG/llI2mchaZ+FpH0BI/MqRvXi1KKy1CJdY72 kosz0jJLcxMwcXUMDM73c1OLixPTUnMSkYr3k/NxNjMAQZACCHYwd/5wOMUpyMCmJ8l7VVQ4X 4kvKT6nMSCzOiC8qzUktPsQow8GhJMF7pAIoJ1iUmp5akZaZA4wGmLQEB4+SCK8oSJq3uCAxt zgzHSJ1ilGXY8GP22uZhFjy8vNSpcR5t4EUCYAUZZTmwY2AReYlRlkpYV5GoKOEeApSi3IzS1 DlXzGKczAqCfO+BJnCk5lXArfpFdARTEBHCGxSBDmiJBEhJdXAmKv29FbZwXNWi4OUWJcK2PE k3RIp9TR33/z/a4iXkPBh+wCno1Oj1z5eHmsnM+PH+ieOuX81NjC4XfdkmnmXPcRt8anU74Vn OPYlLzG2nqj4jHnalCd3uBVK2qc9mp51cl1Ibu7n3XWJP3r+GIS/nHyMz5xz4h3vxlLTRnv+R LdjHLInDpRxKbEUZyQaajEXFScCAD+cMlzHAgAA X-Env-Sender: prvs=920e124aa=wei.liu2@citrix.com X-Msg-Ref: server-16.tower-21.messagelabs.com!1461942685!7556341!1 X-Originating-IP: [66.165.176.89] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogNjYuMTY1LjE3Ni44OSA9PiAyMDMwMDc=\n, received_headers: No Received headers X-StarScan-Received: X-StarScan-Version: 8.34; banners=-,-,- X-VirusChecked: Checked Received: (qmail 16865 invoked from network); 29 Apr 2016 15:11:26 -0000 Received: from smtp.citrix.com (HELO SMTP.CITRIX.COM) (66.165.176.89) by server-16.tower-21.messagelabs.com with RC4-SHA encrypted SMTP; 29 Apr 2016 15:11:26 -0000 X-IronPort-AV: E=Sophos;i="5.24,552,1454976000"; d="scan'208";a="350738977" From: Wei Liu To: Xen-devel Date: Fri, 29 Apr 2016 16:11:17 +0100 Message-ID: <1461942677-14564-7-git-send-email-wei.liu2@citrix.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1461942677-14564-1-git-send-email-wei.liu2@citrix.com> References: <1461942677-14564-1-git-send-email-wei.liu2@citrix.com> MIME-Version: 1.0 X-DLP: MIA2 Cc: Andrew Cooper , Ian Jackson , Wei Liu , cardoe@cardoe.com Subject: [Xen-devel] [PATCH for-4.7 6/6] blktap2: initialise buf in qcow2raw.c:main X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Gcc complains: qcow2raw.c: In function ‘main’: qcow2raw.c:387:17: error: ‘buf’ may be used uninitialized in this function [-Werror=maybe-uninitialized] treq.buf = buf; ^ But buf is a valid buffer allocated by posix_memalign at that point. Signed-off-by: Wei Liu --- tools/blktap2/drivers/qcow2raw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/blktap2/drivers/qcow2raw.c b/tools/blktap2/drivers/qcow2raw.c index a2e417d..5ad7305 100644 --- a/tools/blktap2/drivers/qcow2raw.c +++ b/tools/blktap2/drivers/qcow2raw.c @@ -202,7 +202,7 @@ int main(int argc, const char *argv[]) uint64_t size; struct timeval timeout; uint64_t i; - char *buf; + char *buf = NULL; struct stat finfo; td_request_t treq; td_vbd_request_t* vreq;