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=-1.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,PDS_TONAME_EQ_TOLOCAL_SHORT, SPF_HELO_NONE,SPF_PASS autolearn=no 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 03E7BC433B4 for ; Wed, 19 May 2021 19:28:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA622611B0 for ; Wed, 19 May 2021 19:28:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232041AbhEST3l (ORCPT ); Wed, 19 May 2021 15:29:41 -0400 Received: from lithops.sigma-star.at ([195.201.40.130]:35278 "EHLO lithops.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231747AbhEST3j (ORCPT ); Wed, 19 May 2021 15:29:39 -0400 X-Greylist: delayed 463 seconds by postgrey-1.27 at vger.kernel.org; Wed, 19 May 2021 15:29:38 EDT Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id D87CB606BA4E; Wed, 19 May 2021 21:20:34 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id lS9jCYwelv0U; Wed, 19 May 2021 21:20:34 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id 8EC5E60A3594; Wed, 19 May 2021 21:20:34 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 1T46rIOgKzPk; Wed, 19 May 2021 21:20:34 +0200 (CEST) Received: from lithops.sigma-star.at (lithops.sigma-star.at [195.201.40.130]) by lithops.sigma-star.at (Postfix) with ESMTP id 66F7E616B56D; Wed, 19 May 2021 21:20:34 +0200 (CEST) Date: Wed, 19 May 2021 21:20:34 +0200 (CEST) From: Richard Weinberger To: stable Cc: tomas.melin@vaisala.com, gregkh@linuxfoundation.org, linux-serial@vger.kernel.org Message-ID: <919527621.20381.1621452034259.JavaMail.zimbra@nod.at> Subject: Please backport b86f86e8e7c5 ("serial: 8250: fix potential deadlock in rs485-mode") MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [195.201.40.130] X-Mailer: Zimbra 8.8.12_GA_3807 (ZimbraWebClient - FF78 (Linux)/8.8.12_GA_3809) Thread-Index: hqBNF9KYvvk63RA2cmny2kdaKWQidg== Thread-Topic: Please backport b86f86e8e7c5 ("serial: 8250: fix potential deadlock in rs485-mode") Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Hi! Please backport commit b86f86e8e7c5 ("serial: 8250: fix potential deadlock in rs485-mode") to stable. The issue is real, I was hit by it on 4.14. Thanks, //richard