From patchwork Wed Jul 6 09:13:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 9215861 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0B0A960B16 for ; Wed, 6 Jul 2016 09:20:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EFB1C285F8 for ; Wed, 6 Jul 2016 09:20:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E4CBC287BF; Wed, 6 Jul 2016 09:20:39 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F2285287BB for ; Wed, 6 Jul 2016 09:20:29 +0000 (UTC) Received: from localhost ([::1]:60413 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKj0O-0005De-Uf for patchwork-qemu-devel@patchwork.kernel.org; Wed, 06 Jul 2016 05:20:28 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51155) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKiuL-00072p-C7 for qemu-devel@nongnu.org; Wed, 06 Jul 2016 05:14:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bKiuH-0000Q6-72 for qemu-devel@nongnu.org; Wed, 06 Jul 2016 05:14:12 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49797) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKiuH-0000Pv-1G for qemu-devel@nongnu.org; Wed, 06 Jul 2016 05:14:09 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id ABDCC80B20 for ; Wed, 6 Jul 2016 09:14:08 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-37.ams2.redhat.com [10.36.116.37]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u669E6Jd013764 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 6 Jul 2016 05:14:08 -0400 Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 785751133029; Wed, 6 Jul 2016 11:14:06 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Date: Wed, 6 Jul 2016 11:13:53 +0200 Message-Id: <1467796446-25446-3-git-send-email-armbru@redhat.com> In-Reply-To: <1467796446-25446-1-git-send-email-armbru@redhat.com> References: <1467796446-25446-1-git-send-email-armbru@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Wed, 06 Jul 2016 09:14:08 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 02/15] qemu-img: Don't leak errors when outputting JSON X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Eric Blake If our JSON output ever encounters an error, we would just silently leak the error object. Instead, assert that our usage won't fail. Signed-off-by: Eric Blake Message-Id: <1465490926-28625-3-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster Signed-off-by: Markus Armbruster --- qemu-img.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/qemu-img.c b/qemu-img.c index 3322a1e..debd7f1 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -490,12 +490,11 @@ fail: static void dump_json_image_check(ImageCheck *check, bool quiet) { - Error *local_err = NULL; QString *str; QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; visit_type_ImageCheck(qmp_output_get_visitor(ov), NULL, &check, - &local_err); + &error_abort); obj = qmp_output_get_qobject(ov); str = qobject_to_json_pretty(obj); assert(str != NULL); @@ -2181,12 +2180,11 @@ static void dump_snapshots(BlockDriverState *bs) static void dump_json_image_info_list(ImageInfoList *list) { - Error *local_err = NULL; QString *str; QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; visit_type_ImageInfoList(qmp_output_get_visitor(ov), NULL, &list, - &local_err); + &error_abort); obj = qmp_output_get_qobject(ov); str = qobject_to_json_pretty(obj); assert(str != NULL); @@ -2198,11 +2196,11 @@ static void dump_json_image_info_list(ImageInfoList *list) static void dump_json_image_info(ImageInfo *info) { - Error *local_err = NULL; QString *str; QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; - visit_type_ImageInfo(qmp_output_get_visitor(ov), NULL, &info, &local_err); + visit_type_ImageInfo(qmp_output_get_visitor(ov), NULL, &info, + &error_abort); obj = qmp_output_get_qobject(ov); str = qobject_to_json_pretty(obj); assert(str != NULL);