[Bug 52628] New: game frozen after opening due to infinite loop in winmm.mmioDescend()

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52628

Bug ID: 52628
           Summary: game frozen after opening due to infinite loop in
                    winmm.mmioDescend()
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winmm&mci
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 71949
  --> https://bugs.winehq.org/attachment.cgi?id=71949
fix patch for infinite loop

in winmm, mmio.c, function mmioDescend() around line 1232
there are a loop for mmioRead() mmioSeek() ...

some old game using mmioDescend() and mmioRead() has a chance that always
return -1 causing infinite loop.

My only solution now is to skip that loop when mmioRead() return -1.

This affect some old game like poppo, Silk Road ~Tale of the Star Island~ made
by Sprite