From patchwork Mon Jul 12 06:04:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 474037 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=-19.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 B42FBC07E99 for ; Mon, 12 Jul 2021 07:06:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 972D56113E for ; Mon, 12 Jul 2021 07:06:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240971AbhGLHIz (ORCPT ); Mon, 12 Jul 2021 03:08:55 -0400 Received: from mail.kernel.org ([198.145.29.99]:42134 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242403AbhGLHGo (ORCPT ); Mon, 12 Jul 2021 03:06:44 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 24B49610E6; Mon, 12 Jul 2021 07:03:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626073435; bh=YXHak61v1O7A050cPtVIAPc15LkwuBJvwNxrg1ZOtAI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sQ35hwl+wNNUf6hCRkkQDrLOlyR+vIC01LWDAQq0pUYcgM68CO2JahIo35wWz2UAV aNNOhTjgN8OWLX3KhiPZRSE2lbPKdJ3cwF02zXSYM34XiN7YkvU0tcm15RQt+viRS+ 3sPtlnMWFnmLFXSijkHLQZAvIeA3nqpX0wNqS13Y= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexander Aring , David Teigland , Sasha Levin Subject: [PATCH 5.12 214/700] fs: dlm: fix lowcomms_start error case Date: Mon, 12 Jul 2021 08:04:57 +0200 Message-Id: <20210712060957.123521997@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Alexander Aring [ Upstream commit fcef0e6c27ce109d2c617aa12f0bfd9f7ff47d38 ] This patch fixes the error path handling in lowcomms_start(). We need to cleanup some static allocated data structure and cleanup possible workqueue if these have started. Signed-off-by: Alexander Aring Signed-off-by: David Teigland Signed-off-by: Sasha Levin --- fs/dlm/lowcomms.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index 7e6736c70e11..d2a0ea0acca3 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -1600,10 +1600,15 @@ static void process_send_sockets(struct work_struct *work) static void work_stop(void) { - if (recv_workqueue) + if (recv_workqueue) { destroy_workqueue(recv_workqueue); - if (send_workqueue) + recv_workqueue = NULL; + } + + if (send_workqueue) { destroy_workqueue(send_workqueue); + send_workqueue = NULL; + } } static int work_start(void) @@ -1620,6 +1625,7 @@ static int work_start(void) if (!send_workqueue) { log_print("can't start dlm_send"); destroy_workqueue(recv_workqueue); + recv_workqueue = NULL; return -ENOMEM; } @@ -1751,7 +1757,7 @@ int dlm_lowcomms_start(void) error = work_start(); if (error) - goto fail; + goto fail_local; dlm_allow_conn = 1; @@ -1768,6 +1774,9 @@ int dlm_lowcomms_start(void) fail_unlisten: dlm_allow_conn = 0; dlm_close_sock(&listen_con.sock); + work_stop(); +fail_local: + deinit_local(); fail: return error; }