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=-19.1 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, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 843F8C47082 for ; Mon, 31 May 2021 16:34:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 431DD61396 for ; Mon, 31 May 2021 16:34:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233853AbhEaQeH (ORCPT ); Mon, 31 May 2021 12:34:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:40788 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233893AbhEaOrn (ORCPT ); Mon, 31 May 2021 10:47:43 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6FA5B61926; Mon, 31 May 2021 13:56:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1622469384; bh=Z+xxVOW3tkq0jglHKtvwqtWgs4bHwq0PWj8XRzQNyW8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=avhyamjIndi0epqvHa5Tfo9QlbwgPgkk1pghkcCaPsvkXpUChpphbFWOwWYIvxX2c 6lagmyiPCBr+ur6IyrsXL44aw/1KylHRH1jYeWID+hcQ8RRwUji2nEZMjB8rS0ua/t 89lRc0BeWMF0DPpnxDAWSHSv3kZ7tuZ6zdR2oOic= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ursula Braun , "David S. Miller" , Anirudh Rayabharam , Sasha Levin Subject: [PATCH 5.12 170/296] net/smc: properly handle workqueue allocation failure Date: Mon, 31 May 2021 15:13:45 +0200 Message-Id: <20210531130709.588259921@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210531130703.762129381@linuxfoundation.org> References: <20210531130703.762129381@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Anirudh Rayabharam [ Upstream commit bbeb18f27a44ce6adb00d2316968bc59dc640b9b ] In smcd_alloc_dev(), if alloc_ordered_workqueue() fails, properly catch it, clean up and return NULL to let the caller know there was a failure. Move the call to alloc_ordered_workqueue higher in the function in order to abort earlier without needing to unwind the call to device_initialize(). Cc: Ursula Braun Cc: David S. Miller Signed-off-by: Anirudh Rayabharam Link: https://lore.kernel.org/r/20210503115736.2104747-18-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- net/smc/smc_ism.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c index 6558cf7643a7..94b31f2551bc 100644 --- a/net/smc/smc_ism.c +++ b/net/smc/smc_ism.c @@ -402,6 +402,14 @@ struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name, return NULL; } + smcd->event_wq = alloc_ordered_workqueue("ism_evt_wq-%s)", + WQ_MEM_RECLAIM, name); + if (!smcd->event_wq) { + kfree(smcd->conn); + kfree(smcd); + return NULL; + } + smcd->dev.parent = parent; smcd->dev.release = smcd_release; device_initialize(&smcd->dev); @@ -415,8 +423,6 @@ struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name, INIT_LIST_HEAD(&smcd->vlan); INIT_LIST_HEAD(&smcd->lgr_list); init_waitqueue_head(&smcd->lgrs_deleted); - smcd->event_wq = alloc_ordered_workqueue("ism_evt_wq-%s)", - WQ_MEM_RECLAIM, name); return smcd; } EXPORT_SYMBOL_GPL(smcd_alloc_dev); -- 2.30.2