[Bug 28745] dsound/tests: uninitialized value used in enum_callback() in func_propset()

https://bugs.winehq.org/show_bug.cgi?id=28745

--- Comment #2 from Austin English  ---
Conditional jump or move depends on uninitialised value(s)
    at  callback (propset.c:70)
    by  DSPROPERTY_enumWtoA (propset.c:388)
    by  enum_callback (propset.c:298)
    by  send_device (dsound_main.c:442)
    by  enumerate_mmdevices (dsound_main.c:502)
    by  DSPROPERTY_EnumerateW (propset.c:326)
    by  DSPROPERTY_EnumerateA (propset.c:411)
    by  IKsPrivatePropertySetImpl_Get (propset.c:525)
    by  propset_private_tests (propset.c:439)
    by  func_propset (propset.c:725)
    by  run_test (test.h:584)
    by  main (test.h:654)
  Uninitialised value was created by a stack allocation
    at  enum_callback (propset.c:274)

still present.