Bluetooth: Add status parameter to mgmt_disconnect response

Since disconnecting may fail the status needs to be communicated to user
space. This also updates the implementation to match the latest mgmt API
specification.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index bbfaaa8..0d55d00 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1605,27 +1605,27 @@
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
-	if (ev->status) {
-		hci_dev_lock(hdev);
-		mgmt_disconnect_failed(hdev);
-		hci_dev_unlock(hdev);
-		return;
-	}
-
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (!conn)
 		goto unlock;
 
-	conn->state = BT_CLOSED;
+	if (ev->status == 0)
+		conn->state = BT_CLOSED;
 
-	if (conn->type == ACL_LINK || conn->type == LE_LINK)
-		mgmt_disconnected(hdev, &conn->dst, conn->type,
+	if (conn->type == ACL_LINK || conn->type == LE_LINK) {
+		if (ev->status != 0)
+			mgmt_disconnect_failed(hdev, &conn->dst, ev->status);
+		else
+			mgmt_disconnected(hdev, &conn->dst, conn->type,
 							conn->dst_type);
+	}
 
-	hci_proto_disconn_cfm(conn, ev->reason);
-	hci_conn_del(conn);
+	if (ev->status == 0) {
+		hci_proto_disconn_cfm(conn, ev->reason);
+		hci_conn_del(conn);
+	}
 
 unlock:
 	hci_dev_unlock(hdev);
@@ -2098,7 +2098,7 @@
 
 	case HCI_OP_DISCONNECT:
 		if (ev->status != 0)
-			mgmt_disconnect_failed(hdev);
+			mgmt_disconnect_failed(hdev, NULL, ev->status);
 		break;
 
 	case HCI_OP_LE_CREATE_CONN: