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[Bluetooth] Check if DLC is still attached to the TTY

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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>
This commit is contained in:
Marcel Holtmann 2006-10-15 17:31:10 +02:00 • committed by David S. Miller
commit cb19d9ea2c
1 changed files with 3 additions and 0 deletions
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3
net/bluetooth/rfcomm/tty.c
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@ -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); BT_DBG("tty %p termios %p", tty, old);
if (!dev)
return;
/* Handle turning off CRTSCTS */ /* Handle turning off CRTSCTS */
if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS)) if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS))
BT_DBG("Turning off CRTSCTS unsupported"); BT_DBG("Turning off CRTSCTS unsupported");