Bluetooth: Reorder HCI user channel socket release

The hci close method needs to know if we are in user channel context.
Only add the index to mgmt once close is performed.
Signed-off-by: NLoic Poulain <loic.poulain@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_sock.c

@@ -503,9 +503,9 @@ static int hci_sock_release(struct socket *sock)
 
 	if (hdev) {
 		if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
-			mgmt_index_added(hdev);
-			hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
 			hci_dev_close(hdev->id);
+			hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
+			mgmt_index_added(hdev);
 		}
 
 		atomic_dec(&hdev->promisc);