diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c
index 6c875ffed..61ec96b3a 100755
--- a/drivers/infiniband/hw/hns/hns_roce_hem.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hem.c
@@ -1172,10 +1172,12 @@ static int hem_list_alloc_mid_bt(struct hns_roce_dev *hr_dev,
 
 	/* config L1 bt to last bt and link them to corresponding parent */
 	for (level = 1; level < hopnum; level++) {
-		cur = hem_list_search_item(&mid_bt[level], offset);
-		if (cur) {
-			hem_ptrs[level] = cur;
-			continue;
+		if (!hem_list_is_bottom_bt(hopnum, level)) {
+			cur = hem_list_search_item(&mid_bt[level], offset);
+			if (cur) {
+				hem_ptrs[level] = cur;
+				continue;
+			}
 		}
 
 		step = hem_list_calc_ba_range(hopnum, level, unit);