From patchwork Thu Feb 6 09:32:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1234177 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48CtXT2l6cz9sRp for ; Thu, 6 Feb 2020 20:33:28 +1100 (AEDT) Received: from localhost ([::1]:34452 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1izdXK-0005Ks-JB for incoming@patchwork.ozlabs.org; Thu, 06 Feb 2020 04:33:26 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:35700) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1izdWx-0005Is-0v for qemu-devel@nongnu.org; Thu, 06 Feb 2020 04:33:03 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1izdWv-0005Uh-TB for qemu-devel@nongnu.org; Thu, 06 Feb 2020 04:33:02 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:33562 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1izdWv-0005CL-I7; Thu, 06 Feb 2020 04:33:01 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 608105648C9A7514E7FC; Thu, 6 Feb 2020 17:32:56 +0800 (CST) Received: from HGHY4C002233111.china.huawei.com (10.133.205.93) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.439.0; Thu, 6 Feb 2020 17:32:47 +0800 From: To: , Subject: [PATCH] tests/plugin: prevent uninitialized warning Date: Thu, 6 Feb 2020 17:32:38 +0800 Message-ID: <20200206093238.203984-1-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.14.1.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.32 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-trivial@nongnu.org, Chen Qun , richard.henderson@linaro.org, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Chen Qun According to the glibc function requirements, we need initialise the variable. Otherwise there will be compilation warnings: glib-autocleanups.h:28:3: warning: ‘out’ may be used uninitialized in this function [-Wmaybe-uninitialized] g_free (*pp); ^~~~~~~~~~~~ Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Thomas Huth --- tests/plugin/bb.c | 2 +- tests/plugin/insn.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/plugin/bb.c b/tests/plugin/bb.c index f30bea08dc..8b9da23a04 100644 --- a/tests/plugin/bb.c +++ b/tests/plugin/bb.c @@ -22,7 +22,7 @@ static bool do_inline; static void plugin_exit(qemu_plugin_id_t id, void *p) { - g_autofree gchar *out; + g_autofree gchar *out = NULL; out = g_strdup_printf("bb's: %" PRIu64", insns: %" PRIu64 "\n", bb_count, insn_count); qemu_plugin_outs(out); diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c index 0a8f5a0000..c83b1c0157 100644 --- a/tests/plugin/insn.c +++ b/tests/plugin/insn.c @@ -44,7 +44,7 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) static void plugin_exit(qemu_plugin_id_t id, void *p) { - g_autofree gchar *out; + g_autofree gchar *out = NULL; out = g_strdup_printf("insns: %" PRIu64 "\n", insn_count); qemu_plugin_outs(out); }