From patchwork Sat Dec 26 06:15:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinghao Liu X-Patchwork-Id: 11990249 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 55469C433E0 for ; Sat, 26 Dec 2020 06:16:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 126AA20897 for ; Sat, 26 Dec 2020 06:16:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726579AbgLZGQF (ORCPT ); Sat, 26 Dec 2020 01:16:05 -0500 Received: from mail.zju.edu.cn ([61.164.42.155]:55274 "EHLO zju.edu.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726465AbgLZGQF (ORCPT ); Sat, 26 Dec 2020 01:16:05 -0500 Received: from localhost.localdomain (unknown [10.192.85.18]) by mail-app3 (Coremail) with SMTP id cC_KCgDnzw7o1OZfuQsQAA--.59743S4; Sat, 26 Dec 2020 14:15:08 +0800 (CST) From: Dinghao Liu To: dinghao.liu@zju.edu.cn, kjlu@umn.edu Cc: "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] [v2] scsi: scsi_debug: Fix memleak in scsi_debug_init Date: Sat, 26 Dec 2020 14:15:03 +0800 Message-Id: <20201226061503.20050-1-dinghao.liu@zju.edu.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: cC_KCgDnzw7o1OZfuQsQAA--.59743S4 X-Coremail-Antispam: 1UD129KBjvdXoW7Gr4rur4fXFWxtw15urW3ZFb_yoWDtwc_Ww 4rtryxGr1Yqw4Iv393W348XwnF9F4rWan5uF1SqryIva17X3yqgFW8Zr1UCw45uw429r17 Kws8Zrna9r17AjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb2AFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AK wVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20x vE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E 87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c 8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JrI_ JrylYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwACjI8F5VA0II8E6IAqYI8I648v4I1l42xK82IYc2Ij64vIr41l42xK82IY6x8ErcxF aVAv8VW8uw4UJr1UMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr 4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxG rwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJw CI42IY6xAIw20EY4v20xvaj40_Zr0_Wr1UMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvE x4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUZa9-UUUUU= X-CM-SenderInfo: qrrzjiaqtzq6lmxovvfxof0/1tbiAgYEBlZdtRrnPgAJsy Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When sdeb_zbc_model does not match BLK_ZONED_NONE, BLK_ZONED_HA or BLK_ZONED_HM, we should free sdebug_q_arr to prevent memleak. Also there is no need to execute sdebug_erase_store() on failure of sdeb_zbc_model_str(). Signed-off-by: Dinghao Liu Acked-by: Douglas Gilbert --- Changelog: v2: - Add missed assignment statement for ret. --- drivers/scsi/scsi_debug.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 24c0f7ec0351..4a08c450b756 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -6740,7 +6740,7 @@ static int __init scsi_debug_init(void) k = sdeb_zbc_model_str(sdeb_zbc_model_s); if (k < 0) { ret = k; - goto free_vm; + goto free_q_arr; } sdeb_zbc_model = k; switch (sdeb_zbc_model) { @@ -6753,7 +6753,8 @@ static int __init scsi_debug_init(void) break; default: pr_err("Invalid ZBC model\n"); - return -EINVAL; + ret = -EINVAL; + goto free_q_arr; } } if (sdeb_zbc_model != BLK_ZONED_NONE) {