ethtool-util: make wol_options_to_string() not return all flag strings

2021-10-06 21:33:06 +09:00
parent 1d3d81cf01
commit b4b2a49287
2 changed files with 8 additions and 3 deletions
@@ -43,6 +43,11 @@ int wol_options_to_string_alloc(uint32_t opts, char **ret) {

        assert(ret);

+        if (opts == UINT32_MAX) {
+                *ret = NULL;
+                return 0;
+        }
+
        for (size_t i = 0; i < ELEMENTSOF(wol_option_map); i++)
                if (opts & wol_option_map[i].opt &&
                    !strextend_with_separator(&str, ",", wol_option_map[i].name))
@@ -55,7 +60,7 @@ int wol_options_to_string_alloc(uint32_t opts, char **ret) {
        }

        *ret = TAKE_PTR(str);
-        return 0;
+        return 1;
 }

 static const char* const port_table[] = {