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authorMarcel Holtmann <marcel@holtmann.org>2006-10-15 17:31:10 +0200
committerDavid S. Miller <davem@sunset.davemloft.net>2006-10-16 08:14:33 +0200
commitcb19d9ea2ce2bcbe291d3d48e3501dc4f33ba627 (patch)
tree7cd11f8151f7c8bbf04ca74b1d0faaad3e3fd91c /net
parent[Bluetooth] Fix reference count when connection lookup fails (diff)
downloadlinux-cb19d9ea2ce2bcbe291d3d48e3501dc4f33ba627.tar.xz
linux-cb19d9ea2ce2bcbe291d3d48e3501dc4f33ba627.zip
[Bluetooth] Check if DLC is still attached to the TTY
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>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/rfcomm/tty.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 5833b87c51cf..b8e3a5f1c8a8 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -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");