From e2e04e675d2809a3ee534d8510ee253121b3aa11 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 13 Sep 2022 16:53:12 +0200 Subject: [PATCH] USB: serial: ftdi_sio: fix 300 bps rate for SIO 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@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- 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 eceb6f27fec8..7b854f4e25f5 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1340,8 +1340,7 @@ 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;