USB: pl2303: remove bogus checks and fix speed support to use tty_get_baud_rate() (e0c79f51) · Commits · 戴 / test

drivers/usb/serial/pl2303.c

+1 −32

Original line number	Original line	Diff line number	Diff line
	@@ -484,15 +484,6 @@ static void pl2303_set_termios(struct usb_serial_port *port,
	spin_unlock_irqrestore(&priv->lock, flags);		spin_unlock_irqrestore(&priv->lock, flags);

	cflag = port->tty->termios->c_cflag;		cflag = port->tty->termios->c_cflag;
	/* check that they really want us to change something */
	if (old_termios) {
	if ((cflag == old_termios->c_cflag) &&
	(RELEVANT_IFLAG(port->tty->termios->c_iflag) ==
	RELEVANT_IFLAG(old_termios->c_iflag))) {
	dbg("%s - nothing to change...", __FUNCTION__);
	return;
	}
	}

	buf = kzalloc(7, GFP_KERNEL);		buf = kzalloc(7, GFP_KERNEL);
	if (!buf) {		if (!buf) {
	@@ -517,29 +508,7 @@ static void pl2303_set_termios(struct usb_serial_port *port,
	dbg("%s - data bits = %d", __FUNCTION__, buf[6]);		dbg("%s - data bits = %d", __FUNCTION__, buf[6]);
	}		}

	baud = 0;		baud = tty_get_baud_rate(port->tty);;
	switch (cflag & CBAUD) {
	case B0: baud = 0; break;
	case B75: baud = 75; break;
	case B150: baud = 150; break;
	case B300: baud = 300; break;
	case B600: baud = 600; break;
	case B1200: baud = 1200; break;
	case B1800: baud = 1800; break;
	case B2400: baud = 2400; break;
	case B4800: baud = 4800; break;
	case B9600: baud = 9600; break;
	case B19200: baud = 19200; break;
	case B38400: baud = 38400; break;
	case B57600: baud = 57600; break;
	case B115200: baud = 115200; break;
	case B230400: baud = 230400; break;
	case B460800: baud = 460800; break;
	default:
	dev_err(&port->dev, "pl2303 driver does not support"
	" the baudrate requested (fix it)\n");
	break;
	}
	dbg("%s - baud = %d", __FUNCTION__, baud);		dbg("%s - baud = %d", __FUNCTION__, baud);
	if (baud) {		if (baud) {
	buf[0] = baud & 0xff;		buf[0] = baud & 0xff;

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