Round #2 of scan-build warnings cleanup

lib/base/db.c

@@ -500,6 +500,8 @@ heim_db_begin(heim_db_t db, int read_only, heim_error_t *error)
 
     if (db->plug->beginf) {
 	ret = db->plug->beginf(db->db_data, read_only, error);
+        if (ret)
+            return ret;
     } else if (!db->in_transaction) {
 	/* Try to emulate transactions */
 

lib/base/heimbase.c

@@ -986,7 +986,7 @@ heim_path_vcreate(heim_object_t ptr, size_t size, heim_object_t leaf,
 					  heim_number_get_int(path_element),
 					  leaf);
     }
-    return 0;
+    return ret;
 
 err:
     if (error && !*error) {