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=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 057F9C4320E for ; Wed, 1 Sep 2021 12:45:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E4B8D610C9 for ; Wed, 1 Sep 2021 12:45:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345646AbhIAMqh (ORCPT ); Wed, 1 Sep 2021 08:46:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:48326 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345637AbhIAMow (ORCPT ); Wed, 1 Sep 2021 08:44:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 75BA16113E; Wed, 1 Sep 2021 12:38:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1630499929; bh=gE9y4BMgno56b6Di4lUpJzX78/XLtt4GCu8UQGSu1NQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IWjAP9ilQqu8JIQpdfE5Ma4RxxftP77OW/x59o5mVa+poCrPr1HpNIb6g4WSiS0fS IMiJV35R71cGTR1s70rU+Ub3FrdyKJ05AAgroV/ZXMBp+IKSklZHN3X071T1Nh4iC8 qJiV21HckKRoyRUnc/Z95ArJj6+c5xlZS9ohMKzk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dinghao Liu , Selvin Xavier , Jason Gunthorpe , Sasha Levin Subject: [PATCH 5.13 039/113] RDMA/bnxt_re: Remove unpaired rtnl unlock in bnxt_re_dev_init() Date: Wed, 1 Sep 2021 14:27:54 +0200 Message-Id: <20210901122303.288818109@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210901122301.984263453@linuxfoundation.org> References: <20210901122301.984263453@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: stable@vger.kernel.org From: Dinghao Liu [ Upstream commit a036ad088306a88de87e973981f2b9224e466c3f ] The fixed commit removes all rtnl_lock() and rtnl_unlock() calls in function bnxt_re_dev_init(), but forgets to remove a rtnl_unlock() in the error handling path of bnxt_re_register_netdev(), which may cause a deadlock. This bug is suggested by a static analysis tool. Fixes: c2b777a95923 ("RDMA/bnxt_re: Refactor device add/remove functionalities") Link: https://lore.kernel.org/r/20210816085531.12167-1-dinghao.liu@zju.edu.cn Signed-off-by: Dinghao Liu Acked-by: Selvin Xavier Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/bnxt_re/main.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 25550d982238..8097a8d8a49f 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -1406,7 +1406,6 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 wqe_mode) memset(&rattr, 0, sizeof(rattr)); rc = bnxt_re_register_netdev(rdev); if (rc) { - rtnl_unlock(); ibdev_err(&rdev->ibdev, "Failed to register with netedev: %#x\n", rc); return -EINVAL; -- 2.30.2