2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <[email protected]>

commit eb833a9e0972f60beb4ab8104ad7ef6bf30f02fc upstream.

Return EINVAL if new baud_base does not match the current one.

The baud_base is device specific and can not be changed. This restores
the old (pre-2005) behaviour which was changed due to a
misunderstanding regarding this fact (see
https://lkml.org/lkml/2005/1/20/84).

Reported-by: Torbjörn Lofterud <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 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
@@ -1351,8 +1351,7 @@ static int set_serial_info(struct tty_st
                goto check_and_exit;
        }
 
-       if ((new_serial.baud_base != priv->baud_base) &&
-           (new_serial.baud_base < 9600)) {
+       if (new_serial.baud_base != priv->baud_base) {
                unlock_kernel();
                return -EINVAL;
        }


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