Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
        priv = usb_get_serial_port_data(port);
        if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
-                       priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
+                       priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
                /* This device doesn't support ioctl calls */
+               *tty->termios = *old;
                return;
+       }
 
        speed = tty_get_baud_rate(tty);
        switch (speed) {
        if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
                        priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
                /* This device doesn't support ioctl calls */
-               return 0;
+               return -ENOIOCTLCMD;
 
        switch (cmd) {
        case TCFLSH: