1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 4e434cb10bb1..5a8631c8a4a7 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1846,10 +1846,12 @@ static void ftdi_set_termios (struct usb_serial_port *port, struct termios *old_
         } else {
                 /* set the baudrate determined before */
                 if (change_speed(port)) {
-                        err("%s urb failed to set baurdrate", __FUNCTION__);
+                        err("%s urb failed to set baudrate", __FUNCTION__);
+                }
+                /* Ensure RTS and DTR are raised when baudrate changed from 0 */
+                if ((old_termios->c_cflag & CBAUD) == B0) {
+                        set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
                 }
-                /* Ensure  RTS and DTR are raised */
-                set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
         }
 
         /* Set flow control */