Commit c4ea249f authored Sep 16, 2013 by Johan Hedberg Committed by Gustavo Padovan Sep 18, 2013

Bluetooth: Fix L2CAP Disconnect response for unknown CID



If we receive an L2CAP Disconnect Request for an unknown CID we should
not just silently drop it but reply with a proper Command Reject
response. This patch fixes this by ensuring that the disconnect handler
returns a proper error instead of 0 and will cause the function caller
to send the right response.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

parent 21870b52

net/bluetooth/l2cap_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -4206,7 +4206,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
		chan = __l2cap_get_chan_by_scid(conn, dcid);
		if (!chan) {
		mutex_unlock(&conn->chan_lock);
		return 0;
		return -EBADSLT;
		}

		l2cap_chan_lock(chan);