From patchwork Wed Nov 18 11:56:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1402216 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 4CbhD61QYSz9sPB for ; Wed, 18 Nov 2020 22:58:46 +1100 (AEDT) Received: from localhost ([::1]:37250 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kfM6m-0001Sy-5l for incoming@patchwork.ozlabs.org; Wed, 18 Nov 2020 06:58:44 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:44706) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kfM5n-00019Z-Sr; Wed, 18 Nov 2020 06:57:43 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:2796) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kfM5l-00084Z-EI; Wed, 18 Nov 2020 06:57:43 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4CbhBB6v2TzkZhZ; Wed, 18 Nov 2020 19:57:06 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.487.0; Wed, 18 Nov 2020 19:57:15 +0800 From: Chen Qun To: , Subject: [PATCH-for-5.2? 2/2] tests/qtest: fix memleak in npcm7xx_watchdog_timer-test Date: Wed, 18 Nov 2020 19:56:46 +0800 Message-ID: <20201118115646.2461726-3-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20201118115646.2461726-1-kuhn.chenqun@huawei.com> References: <20201118115646.2461726-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.190; envelope-from=kuhn.chenqun@huawei.com; helo=szxga04-in.huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/18 06:57:26 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: lvivier@redhat.com, peter.maydell@linaro.org, thuth@redhat.com, zhang.zhanghailiang@huawei.com, hskinnemoen@google.com, wuhaotsh@google.com, Euler Robot , Chen Qun Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Properly free resp for get_watchdog_action() to avoid memory leak. ASAN shows memory leak stack: Indirect leak of 12360 byte(s) in 3 object(s) allocated from: #0 0x7f41ab6cbd4e in __interceptor_calloc (/lib64/libasan.so.5+0x112d4e) #1 0x7f41ab4eaa50 in g_malloc0 (/lib64/libglib-2.0.so.0+0x55a50) #2 0x556487d5374b in qdict_new ../qobject/qdict.c:29 #3 0x556487d65e1a in parse_object ../qobject/json-parser.c:318 #4 0x556487d65cb6 in parse_pair ../qobject/json-parser.c:287 #5 0x556487d65ebd in parse_object ../qobject/json-parser.c:343 #6 0x556487d661d5 in json_parser_parse ../qobject/json-parser.c:580 #7 0x556487d513df in json_message_process_token ../qobject/json-streamer.c:92 #8 0x556487d63919 in json_lexer_feed_char ../qobject/json-lexer.c:313 #9 0x556487d63d75 in json_lexer_feed ../qobject/json-lexer.c:350 #10 0x556487d28b2a in qmp_fd_receive ../tests/qtest/libqtest.c:613 #11 0x556487d2a16f in qtest_qmp_eventwait_ref ../tests/qtest/libqtest.c:827 #12 0x556487d248e2 in get_watchdog_action ../tests/qtest/npcm7xx_watchdog_timer-test.c:94 #13 0x556487d25765 in test_enabling_flags ../tests/qtest/npcm7xx_watchdog_timer-test.c:243 Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Havard Skinnemoen --- tests/qtest/npcm7xx_watchdog_timer-test.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tests/qtest/npcm7xx_watchdog_timer-test.c b/tests/qtest/npcm7xx_watchdog_timer-test.c index 54d5d6d8f2..3aae5a0438 100644 --- a/tests/qtest/npcm7xx_watchdog_timer-test.c +++ b/tests/qtest/npcm7xx_watchdog_timer-test.c @@ -204,6 +204,7 @@ static void test_enabling_flags(gconstpointer watchdog) { const Watchdog *wd = watchdog; QTestState *qts; + QDict *rsp; /* Neither WTIE or WTRE is set, no interrupt or reset should happen */ qts = qtest_init("-machine quanta-gsj"); @@ -240,8 +241,9 @@ static void test_enabling_flags(gconstpointer watchdog) g_assert_false(qtest_get_irq(qts, wd->irq)); qtest_clock_step(qts, watchdog_calculate_steps(RESET_CYCLES, watchdog_prescaler(qts, wd))); - g_assert_false(strcmp(qdict_get_str(get_watchdog_action(qts), "action"), - "reset")); + rsp = get_watchdog_action(qts); + g_assert_false(strcmp(qdict_get_str(rsp, "action"), "reset")); + qobject_unref(rsp); qtest_qmp_eventwait(qts, "RESET"); qtest_quit(qts);