From patchwork Wed May 12 14:41:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 436842 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,HEADER_FROM_DIFFERENT_DOMAINS, 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 750CAC43611 for ; Wed, 12 May 2021 15:56:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B060613C5 for ; Wed, 12 May 2021 15:56:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234881AbhELPyB (ORCPT ); Wed, 12 May 2021 11:54:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:52190 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237330AbhELPt5 (ORCPT ); Wed, 12 May 2021 11:49:57 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7862E61411; Wed, 12 May 2021 15:25:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620833140; bh=S04EQrgtECeoZrHMs+nwqVe6h32HeztyAUbNvXZ17pw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NY4pEKk8fXM+p1eO6t4JF95zgJZjKmoST20mfIAnOgrNwmUiglM5etzRnas5FiumP hb/a+rAbNQgFWpxpXFIKuhTrD/IaGV0KsT4jDg9qbLmH7+rgB3TA4icRIZ4WFALQAy SX/de5U6S/48gN4o7Rt8kuH/RpGrXkNMRhLHnMa8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 5.11 009/601] USB: serial: usb_wwan: fix TIOCSSERIAL jiffies conversions Date: Wed, 12 May 2021 16:41:26 +0200 Message-Id: <20210512144828.128564391@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144827.811958675@linuxfoundation.org> References: <20210512144827.811958675@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Johan Hovold commit 3d732690d2267f4d0e19077b178dffbedafdf0c9 upstream. The port close_delay and closing_wait parameters set by TIOCSSERIAL are specified in jiffies and not milliseconds. Add the missing conversions so that the TIOCSSERIAL works as expected also when HZ is not 1000. Fixes: 02303f73373a ("usb-wwan: implement TIOCGSERIAL and TIOCSSERIAL to avoid blocking close(2)") Cc: stable@vger.kernel.org # 2.6.38 Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/usb_wwan.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -140,10 +140,10 @@ int usb_wwan_get_serial_info(struct tty_ ss->line = port->minor; ss->port = port->port_number; ss->baud_base = tty_get_baud_rate(port->port.tty); - ss->close_delay = port->port.close_delay / 10; + ss->close_delay = jiffies_to_msecs(port->port.close_delay) / 10; ss->closing_wait = port->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? ASYNC_CLOSING_WAIT_NONE : - port->port.closing_wait / 10; + jiffies_to_msecs(port->port.closing_wait) / 10; return 0; } EXPORT_SYMBOL(usb_wwan_get_serial_info); @@ -155,9 +155,10 @@ int usb_wwan_set_serial_info(struct tty_ unsigned int closing_wait, close_delay; int retval = 0; - close_delay = ss->close_delay * 10; + close_delay = msecs_to_jiffies(ss->close_delay * 10); closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ? - ASYNC_CLOSING_WAIT_NONE : ss->closing_wait * 10; + ASYNC_CLOSING_WAIT_NONE : + msecs_to_jiffies(ss->closing_wait * 10); mutex_lock(&port->port.mutex);