diff --git a/src/fdb_kvdb.c b/src/fdb_kvdb.c
index 5680383..da83953 100644
--- a/src/fdb_kvdb.c
+++ b/src/fdb_kvdb.c
@@ -837,10 +837,12 @@ static void sector_iterator(fdb_kvdb_t db, kv_sec_info_t sector, fdb_sector_stor
     sec_addr = db_oldest_addr(db);
     do {
         traversed_len += db_sec_size(db);
-        read_sector_info(db, sec_addr, sector, false);
+        if (FDB_NO_ERR != read_sector_info(db, sec_addr, sector, false))
+            return;
         if (status == FDB_SECTOR_STORE_UNUSED || status == sector->status.store) {
             if (traversal_kv) {
-                read_sector_info(db, sec_addr, sector, true);
+                if (FDB_NO_ERR != read_sector_info(db, sec_addr, sector, true))
+                    return;
             }
             /* iterator is interrupted when callback return true */
             if (callback && callback(sector, arg1, arg2)) {