1    /*
2     * Some or all of this work - Copyright (c) 2006 - 2021, Intel Corp.
3     * All rights reserved.
4     *
5     * Redistribution and use in source and binary forms, with or without modification,
6     * are permitted provided that the following conditions are met:
7     *
8     * Redistributions of source code must retain the above copyright notice,
9     * this list of conditions and the following disclaimer.
10     * Redistributions in binary form must reproduce the above copyright notice,
11     * this list of conditions and the following disclaimer in the documentation
12     * and/or other materials provided with the distribution.
13     * Neither the name of Intel Corporation nor the names of its contributors
14     * may be used to endorse or promote products derived from this software
15     * without specific prior written permission.
16     *
17     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18     * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20     * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
25     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26     * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27     */
28    /*
29     * Bug 213 (local-bugzilla-342):
30     *
31     * SUMMARY: abort of AcpiExec on accessing internal object of terminated method by returned IRef
32     *
33     * Crash of AcpiExec occurs when an attempt is
34     * made to access an internal object of method
35     * by Index reference to that object returned
36     * by method (so, the object is dead at the
37     * time it is tried).
38     */
39    Method (M81B, 0, NotSerialized)
40    {
41        Method (M000, 0, Serialized)
42        {
43            Name (S000, "string")
44            Name (P000, Package (0x01)
45            {
46                S000
47            })
48            Store (P000 [0x00], Local0)
49            Debug = DerefOf (Local0)
50            Return (Local0)
51        }
52
53        CH03 (__METHOD__, 0x00, __LINE__, 0x00, 0x00)
54        Local0 = M000 ()
55        CH04 (__METHOD__, 0x00, 0xFF, 0x00, __LINE__, 0x00, 0x00)
56        Debug = DerefOf (Local0)
57        CH04 (__METHOD__, 0x00, 0xFF, 0x00, __LINE__, 0x00, 0x00)
58    }
59