1 files changed, 3 insertions, 2 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 19af58f3a261..a88f4a485c5e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4902,6 +4902,7 @@ DEFINE_PER_CPU(struct sched_domain *, sd_asym);
 static void update_top_cache_domain(int cpu)
 {
         struct sched_domain *sd;
+        struct sched_domain *busy_sd = NULL;
         int id = cpu;
         int size = 1;
 
@@ -4909,9 +4910,9 @@ static void update_top_cache_domain(int cpu)
         if (sd) {
                 id = cpumask_first(sched_domain_span(sd));
                 size = cpumask_weight(sched_domain_span(sd));
-                sd = sd->parent; /* sd_busy */
+                busy_sd = sd->parent; /* sd_busy */
         }
-        rcu_assign_pointer(per_cpu(sd_busy, cpu), sd);
+        rcu_assign_pointer(per_cpu(sd_busy, cpu), busy_sd);
 
         rcu_assign_pointer(per_cpu(sd_llc, cpu), sd);
         per_cpu(sd_llc_size, cpu) = size;