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=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 53B27C3F2D1 for ; Tue, 3 Mar 2020 17:49:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 30AA02146E for ; Tue, 3 Mar 2020 17:49:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583257767; bh=LKAi9ciioPWY0YjeU6EJygKdXh1e7ru3tazXnuOztQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XcA3t2NjBYcg03ZSzHi5D0SbmU74RIShZ+9hjDUC0e67xaxTUPWlTFyWYa36tBXRW iiNmkk41vRXEo6RwOZJPsey3pWnoQ2PEbrA6ogNInRS1NK7QrKOpdIAshoGTf8Cc+s DfnCBVaHku3w+OFc8S0SdMdLPfCMIjxrNdwpuyrk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730928AbgCCRtZ (ORCPT ); Tue, 3 Mar 2020 12:49:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:56626 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729625AbgCCRtU (ORCPT ); Tue, 3 Mar 2020 12:49:20 -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 A43CE20870; Tue, 3 Mar 2020 17:49:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583257760; bh=LKAi9ciioPWY0YjeU6EJygKdXh1e7ru3tazXnuOztQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gk4VZklhCAXa9y+fSvzd/k0mJ3uayzkQ1Pj3y4DLx9apfwe+m/XDQ95rNilVdWyki k0La942dxfBjK4p/ux2e9qDUwLLkUFwib+xWJOtxG+MatsRz6Ijq9nYL4WYKIcZMNt Tp1D9tu0fBhl+TU6RJZjwUgyhlfgUdQhE4DvUXG8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrei Otcheretianski , Johannes Berg Subject: [PATCH 5.5 119/176] mac80211: Remove a redundant mutex unlock Date: Tue, 3 Mar 2020 18:43:03 +0100 Message-Id: <20200303174318.574821134@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200303174304.593872177@linuxfoundation.org> References: <20200303174304.593872177@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: Andrei Otcheretianski commit 0daa63ed4c6c4302790ce67b7a90c0997ceb7514 upstream. The below-mentioned commit changed the code to unlock *inside* the function, but previously the unlock was *outside*. It failed to remove the outer unlock, however, leading to double unlock. Fix this. Fixes: 33483a6b88e4 ("mac80211: fix missing unlock on error in ieee80211_mark_sta_auth()") Signed-off-by: Andrei Otcheretianski Link: https://lore.kernel.org/r/20200221104719.cce4741cf6eb.I671567b185c8a4c2409377e483fd149ce590f56d@changeid [rewrite commit message to better explain what happened] Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- net/mac80211/mlme.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2959,7 +2959,7 @@ static void ieee80211_rx_mgmt_auth(struc (auth_transaction == 2 && ifmgd->auth_data->expected_transaction == 2)) { if (!ieee80211_mark_sta_auth(sdata, bssid)) - goto out_err; + return; /* ignore frame -- wait for timeout */ } else if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && auth_transaction == 2) { sdata_info(sdata, "SAE peer confirmed\n"); @@ -2967,10 +2967,6 @@ static void ieee80211_rx_mgmt_auth(struc } cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); - return; - out_err: - mutex_unlock(&sdata->local->sta_mtx); - /* ignore frame -- wait for timeout */ } #define case_WLAN(type) \