diff options
Diffstat (limited to 'kernel/cgroup/cgroup.c')
| -rw-r--r-- | kernel/cgroup/cgroup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index e24015877d3c..0d93cd17548c 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -6072,6 +6072,9 @@ struct cgroup *cgroup_get_from_id(u64 id) if (!kn) goto out; + if (kernfs_type(kn) != KERNFS_DIR) + goto put; + rcu_read_lock(); cgrp = rcu_dereference(*(void __rcu __force **)&kn->priv); @@ -6079,6 +6082,7 @@ struct cgroup *cgroup_get_from_id(u64 id) cgrp = NULL; rcu_read_unlock(); +put: kernfs_put(kn); if (!cgrp) |