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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 82953C33C9E for ; Tue, 7 Jan 2020 21:02:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 567F12077B for ; Tue, 7 Jan 2020 21:02:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578430945; bh=Ci5sgc3iE/AfrRiDW7MgemDHV0cCMcu9/2DaqSbO1JM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=SxaIHTXr0poTvMK81Q1NY6JSBidIo75IEI4jHAhwUZI8vnS7Z8t/cEk8qf7DNdyyX h985Dy9UEhBnADscxkWuP7Te6SuIWQWcg80AIpiDpn7UAjBdYz+zJdplJfGLm45olT I3wkH5IQagCre7x68YEsgQnpkQHCQqbCHYPcYeUY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728739AbgAGVCY (ORCPT ); Tue, 7 Jan 2020 16:02:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:41908 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728414AbgAGVCX (ORCPT ); Tue, 7 Jan 2020 16:02:23 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 3988F20880; Tue, 7 Jan 2020 21:02:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578430942; bh=Ci5sgc3iE/AfrRiDW7MgemDHV0cCMcu9/2DaqSbO1JM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CMGdwhR6teQ9M0f77mUxAQyhAlOY1XP2CzlcboPpWwF8rB2W2Kidk5JjNeMaMUV77 hUWWDQCFVIFt74DiAWhMilE6hQZkwsDbHlr8Y+LTvYtGRnsekhVMctPMTZL5deBb3z eGcelEiEFa8YUod9FX6RMA2ePzLdVmxSo9o3MoMY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Marcel Holtmann Subject: [PATCH 5.4 159/191] Bluetooth: delete a stray unlock Date: Tue, 7 Jan 2020 21:54:39 +0100 Message-Id: <20200107205341.484533562@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200107205332.984228665@linuxfoundation.org> References: <20200107205332.984228665@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter commit df66499a1fab340c167250a5743931dc50d5f0fa upstream. We used to take a lock in amp_physical_cfm() but then we moved it to the caller function. Unfortunately the unlock on this error path was overlooked so it leads to a double unlock. Fixes: a514b17fab51 ("Bluetooth: Refactor locking in amp_physical_cfm") Signed-off-by: Dan Carpenter Signed-off-by: Marcel Holtmann Signed-off-by: Greg Kroah-Hartman --- net/bluetooth/l2cap_core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -4936,10 +4936,8 @@ void __l2cap_physical_cfm(struct l2cap_c BT_DBG("chan %p, result %d, local_amp_id %d, remote_amp_id %d", chan, result, local_amp_id, remote_amp_id); - if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) { - l2cap_chan_unlock(chan); + if (chan->state == BT_DISCONN || chan->state == BT_CLOSED) return; - } if (chan->state != BT_CONNECTED) { l2cap_do_create(chan, result, local_amp_id, remote_amp_id);