| commit | 36e9d2ebcc15d029b33f42a36146ab5a5bcfcfe7 | [log] [tgz] |
|---|---|---|
| author | Tejun Heo <tj@kernel.org> | Tue May 13 11:28:30 2014 -0400 |
| committer | Tejun Heo <tj@kernel.org> | Tue May 13 11:28:30 2014 -0400 |
| tree | 8de644b8fb941ee475163b59ad76506a647a9d85 | |
| parent | e5ced8ebb10c20a3b349bd798b69ccabd3b25d21 [diff] |
cgroup: fix rcu_read_lock() leak in update_if_frozen()
While updating cgroup_freezer locking, 68fafb77d827 ("cgroup_freezer:
replace freezer->lock with freezer_mutex") introduced a bug in
update_if_frozen() where it returns with rcu_read_lock() held. Fix it
by adding rcu_read_unlock() before returning.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>