1 files changed, 50 insertions, 9 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 1fdf4b9053..d01db89fcb 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -760,6 +760,7 @@ static int terminate_big_sync(struct hci_dev *hdev, void *data)
 
 	bt_dev_dbg(hdev, "big 0x%2.2x bis 0x%2.2x", d->big, d->bis);
 
+	hci_disable_per_advertising_sync(hdev, d->bis);
 	hci_remove_ext_adv_instance_sync(hdev, d->bis, NULL);
 
 	/* Only terminate BIG if it has been created */
@@ -815,6 +816,17 @@ static int big_terminate_sync(struct hci_dev *hdev, void *data)
 	return 0;
 }
 
+static void find_bis(struct hci_conn *conn, void *data)
+{
+	struct iso_list_data *d = data;
+
+	/* Ignore if BIG doesn't match */
+	if (d->big != conn->iso_qos.bcast.big)
+		return;
+
+	d->count++;
+}
+
 static int hci_le_big_terminate(struct hci_dev *hdev, u8 big, struct hci_conn *conn)
 {
 	struct iso_list_data *d;
@@ -826,10 +838,27 @@ static int hci_le_big_terminate(struct hci_dev *hdev, u8 big, struct hci_conn *c
 	if (!d)
 		return -ENOMEM;
 
+	memset(d, 0, sizeof(*d));
 	d->big = big;
 	d->sync_handle = conn->sync_handle;
-	d->pa_sync_term = test_and_clear_bit(HCI_CONN_PA_SYNC, &conn->flags);
-	d->big_sync_term = test_and_clear_bit(HCI_CONN_BIG_SYNC, &conn->flags);
+
+	if (test_and_clear_bit(HCI_CONN_PA_SYNC, &conn->flags)) {
+		hci_conn_hash_list_flag(hdev, find_bis, ISO_LINK,
+					HCI_CONN_PA_SYNC, d);
+
+		if (!d->count)
+			d->pa_sync_term = true;
+
+		d->count = 0;
+	}
+
+	if (test_and_clear_bit(HCI_CONN_BIG_SYNC, &conn->flags)) {
+		hci_conn_hash_list_flag(hdev, find_bis, ISO_LINK,
+					HCI_CONN_BIG_SYNC, d);
+
+		if (!d->count)
+			d->big_sync_term = true;
+	}
 
 	ret = hci_cmd_sync_queue(hdev, big_terminate_sync, d,
 				 terminate_big_destroy);
@@ -865,12 +894,6 @@ static void bis_cleanup(struct hci_conn *conn)
 
 		hci_le_terminate_big(hdev, conn);
 	} else {
-		bis = hci_conn_hash_lookup_big_any_dst(hdev,
-						       conn->iso_qos.bcast.big);
-
-		if (bis)
-			return;
-
 		hci_le_big_terminate(hdev, conn->iso_qos.bcast.big,
 				     conn);
 	}
@@ -1250,6 +1273,12 @@ void hci_conn_failed(struct hci_conn *conn, u8 status)
 		break;
 	}
 
+	/* In case of BIG/PA sync failed, clear conn flags so that
+	 * the conns will be correctly cleaned up by ISO layer
+	 */
+	test_and_clear_bit(HCI_CONN_BIG_SYNC_FAILED, &conn->flags);
+	test_and_clear_bit(HCI_CONN_PA_SYNC_FAILED, &conn->flags);
+
 	conn->state = BT_CLOSED;
 	hci_connect_cfm(conn, status);
 	hci_conn_del(conn);
@@ -1492,6 +1521,18 @@ static int qos_set_bis(struct hci_dev *hdev, struct bt_iso_qos *qos)
 
 	/* Allocate BIS if not set */
 	if (qos->bcast.bis == BT_ISO_QOS_BIS_UNSET) {
+		if (qos->bcast.big != BT_ISO_QOS_BIG_UNSET) {
+			conn = hci_conn_hash_lookup_big(hdev, qos->bcast.big);
+
+			if (conn) {
+				/* If the BIG handle is already matched to an advertising
+				 * handle, do not allocate a new one.
+				 */
+				qos->bcast.bis = conn->iso_qos.bcast.bis;
+				return 0;
+			}
+		}
+
 		/* Find an unused adv set to advertise BIS, skip instance 0x00
 		 * since it is reserved as general purpose set.
 		 */
@@ -2145,7 +2186,7 @@ int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
 	} pdu;
 	int err;
 
-	if (num_bis > sizeof(pdu.bis))
+	if (num_bis < 0x01 || num_bis > sizeof(pdu.bis))
 		return -EINVAL;
 
 	err = qos_set_big(hdev, qos);