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cgroup: fix memory leak in cgroup_rm_cftypes() 

The memory allocated in cgroup_add_cftypes() should be freed. The
effect of this bug is we leak a bit memory everytime we unload
cfq-iosched module if blkio cgroup is enabled.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Li Zefan 2013-06-18 18:41:53 +08:00 committed by Tejun Heo
parent 1c8158eeae
commit f57947d277
1 changed files with 2 additions and 1 deletions
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3
kernel/cgroup.c
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@ -2889,7 +2889,8 @@ int cgroup_rm_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
list_for_each_entry(set, &ss->cftsets, node) { list_for_each_entry(set, &ss->cftsets, node) {
if (set->cfts == cfts) { if (set->cfts == cfts) {
list_del_init(&set->node); list_del(&set->node);
kfree(set);
cgroup_cfts_commit(ss, cfts, false); cgroup_cfts_commit(ss, cfts, false);
return 0; return 0;
} }