From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Add the missing unlock before return from function cgroup_load_subsys()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
kernel/cgroup.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index fb1193b..402f7aa 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4618,6 +4618,7 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
if (IS_ERR(css)) {
/* failure case - need to deassign the cgroup_subsys[] slot. */
cgroup_subsys[ss->subsys_id] = NULL;
+ mutex_unlock(&cgroup_root_mutex);
mutex_unlock(&cgroup_mutex);
return PTR_ERR(css);
}
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