event_process_active_single_queue: Use of memory after it is freed

[Coeur]

This is an Xcode (clang) analyzer warning.

It's reported in event_process_active_single_queue on line 1681 (with the free being mm_free(ev); on line 1748):

libevent/event.c

Line 1681 in eec47a6

if (evcb->evcb_flags & EVLIST_INIT) {

The 20 numbers of the screenshots are:

1. Assuming 'activeq' is not equal to null
2. Entering loop body
3. Assuming the condition is true
4. Assuming the condition is false
5. Assuming the condition is false
6. Assuming 'event_debug_logging_mask_' is 0
7. Assuming the condition is false
8. Assuming the condition is false
9. Assuming field 'th_base_lock' is null
10. Calling 'event_mm_free_'
11. Entered call from 'event_process_active_single_queue'
12. Assuming 'mm_free_fn_' is null
13. Memory is released
14. Returning; memory was released via 1st parameter
15. Assuming field 'event_break' is 0
16. Assuming 'count' is < 'max_to_process'
17. Assuming field 'event_continue' is 0
18. Looping back to the head of the loop
19. Entering loop body
20. Use of memory after it is freed