[Bluetooth] Check if DLC is still attached to the TTY
Marcel Holtmann [Sun, 15 Oct 2006 15:31:10 +0000 (17:31 +0200)]
If the DLC device is no longer attached to the TTY device, then it
makes no sense to go through with changing the termios settings.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/rfcomm/tty.c

index 5833b87..b8e3a5f 100644 (file)
@@ -765,6 +765,9 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct termios *old)
 
        BT_DBG("tty %p termios %p", tty, old);
 
+       if (!dev)
+               return;
+
        /* Handle turning off CRTSCTS */
        if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS)) 
                BT_DBG("Turning off CRTSCTS unsupported");