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Message-Id: <20221013175148.131466005@linuxfoundation.org>
Date:   Thu, 13 Oct 2022 19:52:26 +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 5.10 32/54] 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
@@ -1320,8 +1320,7 @@ static u32 get_ftdi_divisor(struct tty_s
 		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;


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