diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index c273376ff73e6550e411eb9573b37178432d3d9a..154aa12af48e6a29313b6214bcb5c24fbf88e343 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3750,7 +3750,7 @@ static void free_unbound_pwq(struct pool_workqueue *pwq)
 
 	if (pwq) {
 		put_unbound_pool(pwq->pool);
-		kfree(pwq);
+		kmem_cache_free(pwq_cache, pwq);
 	}
 }