Bluetooth: Fix SMP confirmation callback handling

In the case that a local pairing confirmation (JUST_CFM) has been
selected as the method we need to use the user confirm request mgmt
event for it with the confirm_hint set to 1 (to indicate confirmation
without any specific passkey value). Without this (if passkey_notify was
used) the pairing would never proceed. This patch adds the necessary
call to mgmt_user_confirm_request in this scenario.
Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

net/bluetooth/smp.c

@@ -422,6 +422,10 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 	if (method == REQ_PASSKEY)
 		ret = mgmt_user_passkey_request(hcon->hdev, &hcon->dst,
 						hcon->type, hcon->dst_type);
+	else if (method == JUST_CFM)
+		ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst,
+						hcon->type, hcon->dst_type,
+						passkey, 1);
 	else
 		ret = mgmt_user_passkey_notify(hcon->hdev, &hcon->dst,
 						hcon->type, hcon->dst_type,