diff options
| -rw-r--r-- | kernel/cgroup.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index e801ecfa36e..2d3a132e881 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1325,11 +1325,11 @@ static void drop_parsed_module_refcounts(unsigned long subsys_mask) struct cgroup_subsys *ss; int i; - for_each_subsys(ss, i) { - if (!(subsys_mask & (1UL << i))) - continue; - module_put(cgroup_subsys[i]->module); - } + mutex_lock(&cgroup_mutex); + for_each_subsys(ss, i) + if (subsys_mask & (1UL << i)) + module_put(cgroup_subsys[i]->module); + mutex_unlock(&cgroup_mutex); } static int cgroup_remount(struct super_block *sb, int *flags, char *data) |