From patchwork Fri May 21 13:32:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 446232 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 C475EC433B4 for ; Fri, 21 May 2021 13:32:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9C11861164 for ; Fri, 21 May 2021 13:32:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234749AbhEUNeU (ORCPT ); Fri, 21 May 2021 09:34:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:48036 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231601AbhEUNeT (ORCPT ); Fri, 21 May 2021 09:34:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F34A2610CB; Fri, 21 May 2021 13:32:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621603976; bh=Rn+wTokD0xjQeGvVUvsRGt44Ve3Prl0d2vf0pLTXhpI=; h=From:To:Cc:Subject:Date:From; b=pv0hfh50Zemq6yDRyDu41l+dhIBT0hDlgN++nm0I5dMaaFalcv+Mdn8GoUs1KAdOZ iAO/j3Or9akONb819HYlVr2K+jm7O/iEwSS8LBxaiUyJEr389ibJuwLkLMCb9JDf2h InPWPrjZ8ewNhIYHAtAjRVg0dlgp3s4y/WD/q5+vY6/+DwZaNQe9HLbiA7LLwadE1w dT+6U1t6I8FxWuUOUz7FQYWc7M1oDyESvJ3MHaHwOk+gW5BoCyA22nzGvp1N/F9tzU ZdcZETPR3JIC+qaFd0bhwx4tj8aa61wUPuOtH51HxoitJiL99E3TZ9QmZYWAu+jYLJ yVlV4rQ9FHt5A== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1lk5Gr-0004Z8-4O; Fri, 21 May 2021 15:32:57 +0200 From: Johan Hovold To: Johan Hovold Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] USB: serial: quatech2: fix control-request directions Date: Fri, 21 May 2021 15:32:31 +0200 Message-Id: <20210521133231.17488-1-johan@kernel.org> X-Mailer: git-send-email 2.26.3 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The direction of the pipe argument must match the request-type direction bit or control requests may fail depending on the host-controller-driver implementation. Fix the two QT2_FLUSH_DEVICE requests which erroneously used usb_rcvctrlpipe(). Fixes: f7a33e608d9a ("USB: serial: add quatech2 usb to serial driver") Cc: stable@vger.kernel.org # 3.5 Signed-off-by: Johan Hovold --- drivers/usb/serial/quatech2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 3b5f2032ecdb..a9ff3904375f 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -416,7 +416,7 @@ static void qt2_close(struct usb_serial_port *port) /* flush the port transmit buffer */ i = usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), + usb_sndctrlpipe(serial->dev, 0), QT2_FLUSH_DEVICE, 0x40, 1, port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT); @@ -426,7 +426,7 @@ static void qt2_close(struct usb_serial_port *port) /* flush the port receive buffer */ i = usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), + usb_sndctrlpipe(serial->dev, 0), QT2_FLUSH_DEVICE, 0x40, 0, port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);