fix 4-arg uci.set()

diff --git a/lua/uci.c b/lua/uci.c
index b64c91f2cadeac655170697b664addef69de179e..e833b8698499cb1a205972eba39ef2bd1f82db6b 100644 (file)
--- a/lua/uci.c
+++ b/lua/uci.c
@@ -119,6 +119,7 @@ lookup_args(lua_State *L, struct uci_ptr *ptr, char **buf)
                goto error;
 
        switch (n) {
+       case 4:
        case 3:
                ptr->option = luaL_checkstring(L, 3);
                /* fall through */
@@ -133,6 +134,7 @@ lookup_args(lua_State *L, struct uci_ptr *ptr, char **buf)
                        goto error;
                break;
        default:
+               luaL_error(L, "invalid argument count");
                goto error;
        }