Make do_migrate_range() return value mechanism simple.

Changes from v1
(https://lore.kernel.org/linux-mm/20230214223236.58430-1-sj@kernel.org/)
- Simply return nothing from do_migrate_range() (David Hildenbrand)
- Add a cleanup for 'ret' variable

SeongJae Park (2):
  mm/memory_hotplug: return nothing from do_migrate_range()
  mm/memory_hotplug: cleanup 'ret' variable usage in do_migrate_range()

 mm/memory_hotplug.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

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2.25.1