Fix

Author: ldorau

src/critnib/critnib.c

@@ -310,8 +310,12 @@ static struct critnib_node *alloc_node(struct critnib *__restrict c) {
 static void add_to_deleted_leaf_list(struct critnib *__restrict c,
                                      struct critnib_leaf *__restrict k) {
     assert(k);
+    struct critnib_leaf *deleted_leaf;
+
     do {
-        utils_atomic_store_release_ptr(&k->value, c->deleted_leaf);
+        utils_atomic_load_acquire_ptr((void **)&c->deleted_leaf,
+                                      (void **)&deleted_leaf);
+        utils_atomic_store_release_ptr(&k->value, deleted_leaf);
     } while (!utils_compare_exchange_u64(
         (uint64_t *)&c->deleted_leaf, (uint64_t *)&k->value, (uint64_t *)&k));
 }