[PATCH 0/7 V3] idr: fix & cleanup

[Lai Jiangshan]

Patch1 fix a bug caused by overflow.
Patch2,3 add checks for unallocated_id.
Patch4 changes to returned error code
Patch5-7 cleanup.

All patches are acked by Tejun.

Thanks
Lai

Lai Jiangshan (7):
  idr: fix overflow bug during maximum ID calculation at maximum height
  idr: fix unexpected ID-removal when idr_remove(unallocated_id)
  idr: fix NULL pointer dereference when ida_remove(unallocated_id)
  idr: fix idr_replace()'s returned error code
  idr: don't need to shink the free list when idr_remove()
  idr: reduce the unneeded check in free_layer()
  idr: remove useless #ifndef TEST

 lib/idr.c |   42 +++++++++++++++---------------------------
 1 files changed, 15 insertions(+), 27 deletions(-)

-- 
1.7.4.4

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