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=-18.7 required=3.0 tests=BAYES_00,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_RED, 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 619E2C433E0 for ; Mon, 28 Dec 2020 13:06:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 370C922582 for ; Mon, 28 Dec 2020 13:06:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730681AbgL1NGD (ORCPT ); Mon, 28 Dec 2020 08:06:03 -0500 Received: from mail.kernel.org ([198.145.29.99]:33720 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729390AbgL1NFv (ORCPT ); Mon, 28 Dec 2020 08:05:51 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1A8B122B3A; Mon, 28 Dec 2020 13:05:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609160710; bh=vZLDLd/hTUPshAafKNY7RcLwYleHWBITfHEg2udMb1U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EANO5BIPbO6pCFN+5jCgkK7GBeMpVx11bVcVyT5MUvr9Zog06jxT4YczcmYb8vQ10 1qis3uS9kBKQ/bCPI/LvZ5qykdgZRacaFzljWuaJwyoyKKC5px5yZpOD1+kqMaYWXk wnhbWa6+zu8rSIV2RAhQKyKaJW9vQdDRSAGV0Xlw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 4.9 144/175] USB: serial: mos7720: fix parallel-port state restore Date: Mon, 28 Dec 2020 13:49:57 +0100 Message-Id: <20201228124900.226664728@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228124853.216621466@linuxfoundation.org> References: <20201228124853.216621466@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: linux-kernel@vger.kernel.org From: Johan Hovold commit 975323ab8f116667676c30ca3502a6757bd89e8d upstream. The parallel-port restore operations is called when a driver claims the port and is supposed to restore the provided state (e.g. saved when releasing the port). Fixes: b69578df7e98 ("USB: usbserial: mos7720: add support for parallel port on moschip 7715") Cc: stable # 2.6.35 Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7720.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -640,6 +640,8 @@ static void parport_mos7715_restore_stat spin_unlock(&release_lock); return; } + mos_parport->shadowDCR = s->u.pc.ctr; + mos_parport->shadowECR = s->u.pc.ecr; write_parport_reg_nonblock(mos_parport, MOS7720_DCR, mos_parport->shadowDCR); write_parport_reg_nonblock(mos_parport, MOS7720_ECR,