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=-9.8 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 8FE48C83001 for ; Tue, 28 Apr 2020 13:47:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 76D60208FE for ; Tue, 28 Apr 2020 13:47:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727780AbgD1Nrx (ORCPT ); Tue, 28 Apr 2020 09:47:53 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:3327 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726798AbgD1Nrw (ORCPT ); Tue, 28 Apr 2020 09:47:52 -0400 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 5AB36E1E74B4ADC021EB; Tue, 28 Apr 2020 21:47:49 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.487.0; Tue, 28 Apr 2020 21:47:39 +0800 From: Wei Yongjun To: Alexander Shishkin , Maxime Coquelin , Alexandre Torgue CC: Wei Yongjun , , , , Subject: [PATCH -next] stm class: stm_heartbeat: fix error return code Date: Tue, 28 Apr 2020 13:48:55 +0000 Message-ID: <20200428134855.78014-1-weiyongjun1@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix to return error code -ENOMEM from the error handling case instead of 0(ret can be overwritted to 0 in for loop). Signed-off-by: Wei Yongjun --- drivers/hwtracing/stm/heartbeat.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/hwtracing/stm/heartbeat.c b/drivers/hwtracing/stm/heartbeat.c index 3e7df1c0477f..81d7b21d31ec 100644 --- a/drivers/hwtracing/stm/heartbeat.c +++ b/drivers/hwtracing/stm/heartbeat.c @@ -64,7 +64,7 @@ static void stm_heartbeat_unlink(struct stm_source_data *data) static int stm_heartbeat_init(void) { - int i, ret = -ENOMEM; + int i, ret; if (nr_devs < 0 || nr_devs > STM_HEARTBEAT_MAX) return -EINVAL; @@ -72,8 +72,10 @@ static int stm_heartbeat_init(void) for (i = 0; i < nr_devs; i++) { stm_heartbeat[i].data.name = kasprintf(GFP_KERNEL, "heartbeat.%d", i); - if (!stm_heartbeat[i].data.name) + if (!stm_heartbeat[i].data.name) { + ret = -ENOMEM; goto fail_unregister; + } stm_heartbeat[i].data.nr_chans = 1; stm_heartbeat[i].data.link = stm_heartbeat_link;