[Bluetooth] Check if DLC is still attached to the TTY
authorMarcel Holtmann <marcel@holtmann.org>
Sun, 15 Oct 2006 15:31:10 +0000 (17:31 +0200)
committerDavid S. Miller <davem@sunset.davemloft.net>
Mon, 16 Oct 2006 06:14:33 +0000 (23:14 -0700)
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 5833b87c51cfef50eb8f6d5638246e3cf2646782..b8e3a5f1c8a80683d5806662cc7f55c46a656bee 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");