From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C266C433DF for ; Tue, 9 Jun 2020 13:51:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0536E207C3 for ; Tue, 9 Jun 2020 13:51:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730392AbgFINvf (ORCPT ); Tue, 9 Jun 2020 09:51:35 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:42766 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728388AbgFINvf (ORCPT ); Tue, 9 Jun 2020 09:51:35 -0400 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id BCC10FDE7730327D72A8; Tue, 9 Jun 2020 21:51:32 +0800 (CST) Received: from localhost.localdomain (10.175.112.125) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Tue, 9 Jun 2020 21:51:24 +0800 From: Kefeng Wang To: Divya Indi , CC: Steven Rostedt , Aruna Ramakrishna , Kefeng Wang Subject: [PATCH] sample-trace-array: Remove trace_array 'sample-instance' Date: Tue, 9 Jun 2020 13:52:00 +0000 Message-ID: <20200609135200.2206726-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.112.125] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remove trace_array 'sample-instance' if kthread_run fails in sample_trace_array_init(). Signed-off-by: Kefeng Wang --- samples/ftrace/sample-trace-array.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/samples/ftrace/sample-trace-array.c b/samples/ftrace/sample-trace-array.c index 9e437f930280..6aba02a31c96 100644 --- a/samples/ftrace/sample-trace-array.c +++ b/samples/ftrace/sample-trace-array.c @@ -115,8 +115,12 @@ static int __init sample_trace_array_init(void) trace_printk_init_buffers(); simple_tsk = kthread_run(simple_thread, NULL, "sample-instance"); - if (IS_ERR(simple_tsk)) + if (IS_ERR(simple_tsk)) { + trace_array_put(tr); + trace_array_destroy(tr); return -1; + } + return 0; } -- 2.27.0