From patchwork Mon Jul 1 02:13:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhu Jun X-Patchwork-Id: 808922 Received: from cmccmta1.chinamobile.com (cmccmta2.chinamobile.com [111.22.67.135]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B8F9110F1; Mon, 1 Jul 2024 02:13:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=111.22.67.135 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719800032; cv=none; b=X1SJ/9oAqZzxxpOFaa9Ir7sLP5hiusIsum05Xgv3189lATcotVLfg0DHPITbZlin4f9XOcr362rvwdoGbPcqD6l8tjy8VKhJtyA73TKxtyCImyTGEEXn7U08qCDGNQ+dM8e+l01IjC/+cLUc5WEdh5nlRFnFu+D8/TWOTQc75pM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719800032; c=relaxed/simple; bh=xX4Ak7E42QQc9wwOJPl3DEy10f6SvXhNxNVxxv/+pwA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=AlwlswcyeiMWg0ZSdNKpslYDTsMbv+bvvWOmzUkogr1FxRx5rdbaOnn9Evd1Rz73iF2vE/7FRTRtaelA5Yvkkarjcv2H7ZOeb2y5aCciRS7nwdCncPXWKeRr+3YiZkHfGmlUW11tToJACl9W28RQ4yK+1XGc4LKLUzE405VrziI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=cmss.chinamobile.com; spf=pass smtp.mailfrom=cmss.chinamobile.com; arc=none smtp.client-ip=111.22.67.135 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=cmss.chinamobile.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cmss.chinamobile.com X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from spf.mail.chinamobile.com (unknown[10.188.0.87]) by rmmx-syy-dmz-app03-12003 (RichMail) with SMTP id 2ee3668210d135d-a7b66; Mon, 01 Jul 2024 10:13:38 +0800 (CST) X-RM-TRANSID: 2ee3668210d135d-a7b66 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from ubuntu.localdomain (unknown[10.54.5.252]) by rmsmtp-syy-appsvr01-12001 (RichMail) with SMTP id 2ee1668210d0cd3-58186; Mon, 01 Jul 2024 10:13:37 +0800 (CST) X-RM-TRANSID: 2ee1668210d0cd3-58186 From: Zhu Jun To: daniel@iogearbox.net Cc: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, eddyz87@gmail.com, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, martin.lau@linux.dev, mykolal@fb.com, sdf@fomichev.me, shuah@kernel.org, song@kernel.org, yonghong.song@linux.dev, zhujun2@cmss.chinamobile.com Subject: [PATCH] selftests/bpf:fix a resource leak Date: Sun, 30 Jun 2024 19:13:31 -0700 Message-Id: <20240701021331.3057-1-zhujun2@cmss.chinamobile.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <847bcc7c-e54e-648a-be47-59e0a6d0853e@iogearbox.net> References: <847bcc7c-e54e-648a-be47-59e0a6d0853e@iogearbox.net> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The requested resources should be closed before return in main(), otherwise resource leak will occur Signed-off-by: Zhu Jun --- tools/testing/selftests/bpf/test_sockmap.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c index a34e95040994..d51af986d9d8 100644 --- a/tools/testing/selftests/bpf/test_sockmap.c +++ b/tools/testing/selftests/bpf/test_sockmap.c @@ -2075,8 +2075,10 @@ int main(int argc, char **argv) if (!cg_fd) { cg_fd = cgroup_setup_and_join(CG_PATH); - if (cg_fd < 0) - return cg_fd; + if (cg_fd < 0) { + err = cg_fd; + goto out1; + } cg_created = 1; } @@ -2092,7 +2094,7 @@ int main(int argc, char **argv) if (err) { fprintf(stderr, "populate program: (%s) %s\n", bpf_file, strerror(errno)); - return 1; + goto out; } running = 1; @@ -2105,13 +2107,14 @@ int main(int argc, char **argv) err = run_options(&options, cg_fd, test); out: + close(cg_fd); + if (cg_created) + cleanup_cgroup_environment(); +out1: if (options.whitelist) free(options.whitelist); if (options.blacklist) free(options.blacklist); - close(cg_fd); - if (cg_created) - cleanup_cgroup_environment(); return err; }