mm/hugetlb: fix sysfs group leak in hugetlb_unregister_node()

The sysfs group per_node_hstate_attr_group and hstate_demote_attr_group
when h->demote_order != 0 are created in hugetlb_register_node().  But
these sysfs groups are not removed when unregister the node, thus sysfs
group is leaked.  Using sysfs_remove_group() to fix this issue.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Miaohe Lin <[email protected]>
Reviewed-by: Fengwei Yin <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Muchun Song <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions