From nobody Mon Feb 9 00:19:44 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1505375681858958.062190782591; Thu, 14 Sep 2017 00:54:41 -0700 (PDT) Received: from localhost ([::1]:46196 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dsOyv-00019v-5g for importer@patchew.org; Thu, 14 Sep 2017 03:54:41 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51707) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dsOvR-0006AK-BA for qemu-devel@nongnu.org; Thu, 14 Sep 2017 03:51:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dsOvO-0006Wv-5h for qemu-devel@nongnu.org; Thu, 14 Sep 2017 03:51:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49996) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dsOvN-0006Vy-Vp for qemu-devel@nongnu.org; Thu, 14 Sep 2017 03:51:02 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id EEA1C7EBD5; Thu, 14 Sep 2017 07:51:00 +0000 (UTC) Received: from pxdev.xzpeter.org.com (dhcp-15-224.nay.redhat.com [10.66.15.224]) by smtp.corp.redhat.com (Postfix) with ESMTP id B3326619BE; Thu, 14 Sep 2017 07:50:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com EEA1C7EBD5 Authentication-Results: ext-mx03.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx03.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=peterx@redhat.com From: Peter Xu To: qemu-devel@nongnu.org Date: Thu, 14 Sep 2017 15:50:23 +0800 Message-Id: <1505375436-28439-3-git-send-email-peterx@redhat.com> In-Reply-To: <1505375436-28439-1-git-send-email-peterx@redhat.com> References: <1505375436-28439-1-git-send-email-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 14 Sep 2017 07:51:01 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [RFC 02/15] qobject: allow NULL for qstring_get_str() 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: , Cc: Laurent Vivier , Fam Zheng , Juan Quintela , Markus Armbruster , peterx@redhat.com, mdroth@linux.vnet.ibm.com, Stefan Hajnoczi , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Then I can get NULL rather than crash when calling things like: qstring_get_str(qobject_to_qstring(object)); when key does not exist. CC: Markus Armbruster Signed-off-by: Peter Xu --- qobject/qstring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/qobject/qstring.c b/qobject/qstring.c index 5da7b5f..c499fec 100644 --- a/qobject/qstring.c +++ b/qobject/qstring.c @@ -125,7 +125,7 @@ QString *qobject_to_qstring(const QObject *obj) */ const char *qstring_get_str(const QString *qstring) { - return qstring->string; + return qstring ? qstring->string : NULL; } =20 /** --=20 2.7.4