Merge misc fixes from Andrew Morton:
 "A few late-breaking fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/memblock.c: fix NULL dereference error
  MAINTAINERS: update cgroup's document path
  slub: drop bogus inline for fixup_red_left()
  powerpc/fsl_rio: fix a missing error code
  mm: initialise per_cpu_nodestats for all online pgdats at boot
  mm/memblock: fix a typo in a comment
  mm: disable CONFIG_MEMORY_HOTPLUG when KASAN is enabled