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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 D9677C43603 for ; Wed, 4 Dec 2019 18:19:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AB0C920833 for ; Wed, 4 Dec 2019 18:19:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483555; bh=olpRWpc1GqqmjX4xtToiGs6SgZGZO9jL77wfwEn4XNs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=dp8W0t2pOi3oFvAH9OB3IaBsZpytZfevCyB5CANom7XJLog78I8ZZZYdv4e1LYzaU fKXflBNYyapvZWg31aMs+7LKNgIVOOHFf4jCn+9tbSXsEGt3ZcFeVDBjdCkOOVxX2C Xi2zNUQ/PbiL8U8MnjFfktD7MduenjSQFTblR1fw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731443AbfLDSTO (ORCPT ); Wed, 4 Dec 2019 13:19:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:36714 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731180AbfLDSKC (ORCPT ); Wed, 4 Dec 2019 13:10:02 -0500 Received: from localhost (unknown [217.68.49.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5953720675; Wed, 4 Dec 2019 18:10:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483001; bh=olpRWpc1GqqmjX4xtToiGs6SgZGZO9jL77wfwEn4XNs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UiXfuUTSaRPC+h2zYk1kDkAK2L8QdxcuH5pxKBO5r2QA+u7KqF/kww3aGZu+g6G3w 1sBYI5Be3jOfYQfYTqBMeZBT+QOtYDQMTEjKZAcafy+2KxmbtZBcw+5+zADUUNZxoq ArW9SNxMe4Cf/n+OpVusGn4iSHG9g8YaJ3821268= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Jens Axboe , Sasha Levin Subject: [PATCH 4.9 012/125] block: drbd: remove a stray unlock in __drbd_send_protocol() Date: Wed, 4 Dec 2019 18:55:17 +0100 Message-Id: <20191204175314.961180636@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204175308.377746305@linuxfoundation.org> References: <20191204175308.377746305@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dan Carpenter [ Upstream commit 8e9c523016cf9983b295e4bc659183d1fa6ef8e0 ] There are two callers of this function and they both unlock the mutex so this ends up being a double unlock. Fixes: 44ed167da748 ("drbd: rcu_read_lock() and rcu_dereference() for tconn->net_conf") Signed-off-by: Dan Carpenter Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- drivers/block/drbd/drbd_main.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 83482721bc012..f5c24459fc5c1 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -793,7 +793,6 @@ int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cm if (nc->tentative && connection->agreed_pro_version < 92) { rcu_read_unlock(); - mutex_unlock(&sock->mutex); drbd_err(connection, "--dry-run is not supported by peer"); return -EOPNOTSUPP; } -- 2.20.1