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-rw-r--r--kernel/sched.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 65204845063e..72c194c55c31 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7023,7 +7023,8 @@ static void __free_domain_allocs(struct s_data *d, enum s_alloc what,
switch (what) {
case sa_rootdomain:
- free_rootdomain(&d->rd->rcu); /* fall through */
+ if (!atomic_read(&d->rd->refcount))
+ free_rootdomain(&d->rd->rcu); /* fall through */
case sa_sd:
free_percpu(d->sd); /* fall through */
case sa_sd_storage:
@@ -7208,7 +7209,7 @@ static int build_sched_domains(const struct cpumask *cpu_map,
enum s_alloc alloc_state = sa_none;
struct sched_domain *sd;
struct s_data d;
- int i;
+ int i, ret = -ENOMEM;
alloc_state = __visit_domain_allocation_hell(&d, cpu_map);
if (alloc_state != sa_rootdomain)
@@ -7261,12 +7262,10 @@ static int build_sched_domains(const struct cpumask *cpu_map,
}
rcu_read_unlock();
- __free_domain_allocs(&d, sa_sd, cpu_map);
- return 0;
-
+ ret = 0;
error:
__free_domain_allocs(&d, alloc_state, cpu_map);
- return -ENOMEM;
+ return ret;
}
static cpumask_var_t *doms_cur; /* current sched domains */