linux-kernel - [PATCH 4.14 031/210] USB: serial: ftdi

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221024112957.971464744@linuxfoundation.org>
Date:   Mon, 24 Oct 2022 13:29:08 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Johan Hovold <johan@...nel.org>
Subject: [PATCH 4.14 031/210] USB: serial: ftdi_sio: fix 300 bps rate for SIO

From: Johan Hovold <johan@...nel.org>

commit 7bd7ad3c310cd6766f170927381eea0aa6f46c69 upstream.

The 300 bps rate of SIO devices has been mapped to 9600 bps since
2003... Let's fix the regression.

Cc: stable@...r.kernel.org
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/serial/ftdi_sio.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1309,8 +1309,7 @@ static __u32 get_ftdi_divisor(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;