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| author | Tejun Heo <tj@kernel.org> | 2012-11-19 17:13:37 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-11-19 17:13:37 +0100 |
| commit | 02ae7486d05ae6df8395409a4945b2420f1e35c2 (patch) | |
| tree | 18d3f09250a850d9d6dfe3f62dfe13f4f6353374 /kernel/stop_machine.c | |
| parent | cgroup: lock cgroup_mutex in cgroup_init_subsys() (diff) | |
| download | linux-02ae7486d05ae6df8395409a4945b2420f1e35c2.tar.xz linux-02ae7486d05ae6df8395409a4945b2420f1e35c2.zip | |
cgroup: fix harmless bugs in cgroup_load_subsys() fail path and cgroup_unload_subsys()
* If idr init fails, cgroup_load_subsys() cleared dummytop->subsys[]
before calilng ->destroy() making CSS inaccessible to the callback,
and didn't unlink ss->sibling. As no modular controller uses
->use_id, this doesn't cause any actual problems.
* cgroup_unload_subsys() was forgetting to free idr, call
->pre_destroy() and clear ->active. As there currently is no
modular controller which uses ->use_id, ->pre_destroy() or ->active,
this doesn't cause any actual problems.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'kernel/stop_machine.c')
0 files changed, 0 insertions, 0 deletions