[Bug 36620] New: valgrind shows a few invalid reads in ddraw/tests/ddraw1.c

https://bugs.winehq.org/show_bug.cgi?id=36620

Bug ID: 36620
           Summary: valgrind shows a few invalid reads in
                    ddraw/tests/ddraw1.c
           Product: Wine
           Version: 1.7.18
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase
          Severity: normal
          Priority: P2
         Component: directx-d3d
          Assignee: [e-mail]
          Reporter: [e-mail]

==13886== Invalid read of size 4
==13886==    at 0x4BC58CC: d3d_viewport_Clear (viewport.c:671)
==13886==    by 0x4A83D8A: test_material (ddraw1.c:4948)
==13886==    by 0x4A873B1: func_ddraw1 (ddraw1.c:5522)
==13886==    by 0x4B24F84: run_test (test.h:584)
==13886==    by 0x4B25373: main (test.h:654)
==13886==  Address 0xa060788 is 40 bytes inside a block of size 108 free'd
==13886==    at 0x7BC4C7AA: notify_free (heap.c:263)
==13886==    by 0x7BC510EF: RtlFreeHeap (heap.c:1762)
==13886==    by 0x4BAB294: d3d_material3_Release (material.c:155)
==13886==    by 0x4BABD73: d3d_material1_Release (material.c:400)
==13886==    by 0x4A6C23C: destroy_material (ddraw1.c:426)
==13886==    by 0x4A83A74: test_material (ddraw1.c:4917)
==13886==    by 0x4A873B1: func_ddraw1 (ddraw1.c:5522)
==13886==    by 0x4B24F84: run_test (test.h:584)
==13886==    by 0x4B25373: main (test.h:654)
==13886==