From 582ed6e2205004cee5b59637ec25b84f0cf4812e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 23 Mar 2012 15:23:18 +0100 Subject: [PATCH] USB: pl2303: fix DTR/RTS being raised on baud rate change MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit ce5c9851855bab190c9a142761d54ba583ab094c upstream. DTR/RTS should only be raised when changing baudrate from B0 and not on any baud rate change (> B0). Reported-by: Søren Holm Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/pl2303.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index fc2d66f7f4eb..5532ea5f8d75 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -421,7 +421,7 @@ static void pl2303_set_termios(struct tty_struct *tty, control = priv->line_control; if ((cflag & CBAUD) == B0) priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); - else + else if ((old_termios->c_cflag & CBAUD) == B0) priv->line_control |= (CONTROL_DTR | CONTROL_RTS); if (control != priv->line_control) { control = priv->line_control; -- 2.39.5