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Milan Crha authored
The e_simple_async_result_complete_idle() adds a reference to the passed-in ESimpleAsyncResult instance and schedules an idle callback, where it is also unreffed. Usual follow up action of the caller was to unref the result, maybe in a dedicated thread. The race comes when the dedicated thread is suspended before it removes its reference on the result and the idle callback is processed before the thread is resumed. That can also mean to free widgets, which are supposed to be freed only in the main/UI thread, in the dedicated thread, causing crash or other issues. The fix is to take the reference of the result, instead of adding its own and unreffing it shortly after. This is related to a downstream bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1770923
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