PointerFIFO: Fix memleak of ListNode

Found by ASan. when PointerFIFO::release() is called, alloicated node
being released is actually stored into an internal list for later-reuse
without having to access memory allocator. However, nodes from this
list are never freed.

Change-Id: I40e5e28603cde67005d9d92772967b05465ea2b8
2 files changed