These small changes fix the bug shown below and another potential one.

kamailio[3062]: : <core> [mem/q_malloc.c:453]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7facf958dc08), called from presence: hash.c: delete_shtable(316), first free presence: hash.c: free_subs_list(349) - aborting

It's the double free apocalypse day :)

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/754

-- Commit Summary --

* presence: fix multiple double free on shutdown caught with memlog=1

-- File Changes --

M modules/presence/hash.c (11)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/754.patch https://github.com/kamailio/kamailio/pull/754.diff