diff options
| author | Johan Hovold <jhovold@gmail.com> | 2012-01-10 23:33:37 +0100 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-02-09 15:32:23 -0800 |
| commit | d7d55f41b54967769fad9aebe3c7a1744cbd0fd4 (patch) | |
| tree | fbbb19c0d1511dd13c234f9006e048b603a0ef42 | |
| parent | d6f4da1e2f5ccff58e22880cff4024e5bca633d8 (diff) | |
USB: ftdi_sio: fix TIOCSSERIAL baud_base handling
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 <torbjorn@pi.nxs.se>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I672bd484e4c55708f0e97c83037c5acbc7b9e7c7
Reviewed-on: http://git-master/r/79666
Reviewed-by: Automatic_Commit_Validation_User
| -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 bbd2cdd669a4..b45091e45f13 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1329,8 +1329,7 @@ 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; } |