Commit b6796134 authored Dec 03, 2014 by Kamal Negi Committed by Rupesh Tatiya Sep 15, 2015

bluetooth: Notify connection deletion only for SCO/ESCO links.



When SCO is active , if we create a connection to another remote
device and delete it, then the alternate setting for the ISOC
channel is getting disabled.

THis is a bug in the BTUSB driver which listens for connection
deletion notification for both ACL and SCO.

Hence, even if ACL disconnection happens with a different remote
device, we set the alternate setting of the currently active
ISOC endpoint to '0' which disables the ISOC endpoint.

As a result there are no further SCO data being sent to the
BT controller.

Change-Id: Ie33752794ee494ffbf29941278a643d8bd103077
CRs-Fixed: 764018
Signed-off-by: Kamal Negi <kamaln@codeaurora.org>
Signed-off-by: Rupesh Tatiya <rtatiya@codeaurora.org>

parent 6e11466b

net/bluetooth/hci_conn.c

+6 −2

Original line number	Diff line number	Diff line
		/*
		BlueZ - Bluetooth protocol stack for Linux
		Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
		Copyright (c) 2000-2001, 2010, 2014, Code Aurora Forum. All rights
		reserved.

		Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>

		@@ -502,6 +503,7 @@ struct hci_conn hci_conn_add(struct hci_dev hdev, int type, bdaddr_t *dst,
		int hci_conn_del(struct hci_conn *conn)
		{
		struct hci_dev *hdev = conn->hdev;
		__u8 type;

		BT_DBG("%s hcon %p handle %d", hdev->name, conn, conn->handle);

		@@ -537,7 +539,9 @@ int hci_conn_del(struct hci_conn *conn)
		amp_mgr_put(conn->amp_mgr);

		hci_conn_hash_del(hdev, conn);
		if (hdev->notify)

		type = conn->type;
		if (hdev->notify && (type == SCO_LINK \|\| type == ESCO_LINK))
		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);

		skb_queue_purge(&conn->data_q);