cgroup: remove redundant code in cgroup_rmdir()

We no longer clear kn->priv in cgroup_rmdir(), so we don't need
to get an extra refcnt.

Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 619aae3..d739a73 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4841,13 +4841,10 @@ static int cgroup_rmdir(struct kernfs_node *kn)
        cgrp = cgroup_kn_lock_live(kn);
        if (!cgrp)
                return 0;
-       cgroup_get(cgrp);       /* for @kn->priv clearing */
 
        ret = cgroup_destroy_locked(cgrp);
 
        cgroup_kn_unlock(kn);
-
-       cgroup_put(cgrp);
        return ret;
 }