diff options
| author | Johan Hovold <jhovold@gmail.com> | 2012-01-10 23:33:37 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 11:20:10 -0800 |
| commit | eb833a9e0972f60beb4ab8104ad7ef6bf30f02fc (patch) | |
| tree | e0de114cb5ad208618508f5dae5c8cc5ef7aa571 /drivers/usb/serial/ftdi_sio.c | |
| parent | 55305afc30529143bdb5928b2154dccdf073acd5 (diff) | |
USB: ftdi_sio: fix TIOCSSERIAL baud_base handling
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 <torbjorn@pi.nxs.se>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 01b6404df39..ff5a8e172a3 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1333,8 +1333,7 @@ static int set_serial_info(struct tty_struct *tty, 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) { mutex_unlock(&priv->cfg_lock); return -EINVAL; } |