MDEV-23183 Infinite loop on page_validate() on corrupted page

MDEV-22721 (commit eba2d10a)
inadvertently introduced an infinite loop.

page_validate(): Remove the infinite loop.

storage/innobase/page/page0page.cc

@@ -2,7 +2,7 @@
 
 Copyright (c) 1994, 2016, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2012, Facebook Inc.
-Copyright (c) 2017, 2019, MariaDB Corporation.
+Copyright (c) 2017, 2020, MariaDB Corporation.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -2442,7 +2442,9 @@ page_validate(
 		ib::error() << "Apparent corruption in space "
 			<< page_get_space_id(page) << " page "
 			<< page_get_page_no(page) << " index " << index->name;
+		return FALSE;
 	}
+
 	if (page_is_comp(page)) {
 		if (UNIV_UNLIKELY(!page_simple_validate_new(page))) {
 			goto func_exit2;