From patchwork Tue Sep 13 14:53:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 605691 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52779C54EE9 for ; Tue, 13 Sep 2022 16:18:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231552AbiIMQSs (ORCPT ); Tue, 13 Sep 2022 12:18:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54524 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232619AbiIMQSO (ORCPT ); Tue, 13 Sep 2022 12:18:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A9EEA4B07; Tue, 13 Sep 2022 08:13:51 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 29C77614BD; Tue, 13 Sep 2022 14:53:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 88443C43140; Tue, 13 Sep 2022 14:53:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663080803; bh=/8WqCLI/wMTjSbA7iL9pUmar0F3oKI5oUzIn+3qnt+c=; h=From:To:Cc:Subject:Date:From; b=Li7BgVSfXOWDvCNi0CtS04TwNdrK+uzVPegNGktqG3WwwGe00CfDGUvLfGKqFkteV pKg+LHSJ1UrHbQiuP0QPKIRYm5imQXjn65Ma2qlK1ZpDQLRy+JYyXNIilxebPwGlHq T1cN+XJ9ZyrjHPHIM9Zj7OcO8GoQIEXx7UoxFLBzqG3G4zQbFNOMuGajsEsSWVrosm fBR9kADARFhn2ZK20yvCPObWSF1cYrhVla8dbaDVGSVrh65gfmtYRKniLGZxCEjYbh KSmHVnejSGXipu14cv/4Ue55Yx25PD9DfHpMN/QiwNnCsHiX9thcIV155ziN2O0Qwt rjADueaqIgaRQ== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1oY7Hv-0005PR-0J; Tue, 13 Sep 2022 16:53:23 +0200 From: Johan Hovold To: Johan Hovold Cc: =?utf-8?q?Pali_Roh=C3=A1r?= , =?utf-8?q?Marek_Beh=C3=BA?= =?utf-8?q?n?= , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] USB: serial: ftdi_sio: fix 300 bps rate for SIO Date: Tue, 13 Sep 2022 16:53:12 +0200 Message-Id: <20220913145312.20782-1-johan@kernel.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The 300 bps rate of SIO devices has been mapped to 9600 bps since 2003... Let's fix the regression. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold --- drivers/usb/serial/ftdi_sio.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 52d59be92034..787e63fd7f99 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1319,8 +1319,7 @@ static u32 get_ftdi_divisor(struct tty_struct *tty, case 38400: div_value = ftdi_sio_b38400; break; case 57600: div_value = ftdi_sio_b57600; break; case 115200: div_value = ftdi_sio_b115200; break; - } /* baud */ - if (div_value == 0) { + default: dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n", __func__, baud); div_value = ftdi_sio_b9600;