1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index f0f8353ec1ac..deba28ec77e8 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -640,9 +640,11 @@ static void kobil_set_termios(struct tty_struct *tty,
 
         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) {
@@ -704,7 +706,7 @@ static int kobil_ioctl(struct tty_struct *tty, struct file *file,
         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: