[Bug 40024] Prosound crashes on start
wine-bugs at winehq.org
wine-bugs at winehq.org
Tue Jun 21 09:54:43 CDT 2016
https://bugs.winehq.org/show_bug.cgi?id=40024
--- Comment #3 from Andrew Eikum <aeikum at codeweavers.com> ---
I don't think I agree with the approach taking by the staging patchset. Instead
of refcounting to prevent access-after-free, we should just never access the
MIDIHDR after sending MOM_DONE to the application.
I'm not sure exactly how we can do this, but my approach would be to unmap the
MODM_LONGDATA header just before invoking MOM_DONE. Maybe we can do this in
mmsystem16.MMSYSTDRV_Callback3216. This would have the advantage of correctly
copying the flags that are set in midimap.modLongData to the 16-bit header. The
flags are currently not reaching the application in the MOM_DONE callback
invoked by midimap.modLongData.
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