From faad6479defa30dec10cf4394c1da6fdf8f12f19 Mon Sep 17 00:00:00 2001
From: rubenwardy <rw@rubenwardy.com>
Date: Fri, 8 Sep 2017 23:45:56 +0100
Subject: [PATCH] Fix crash on revocation of removed privilege

---
 builtin/game/register.lua | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/builtin/game/register.lua b/builtin/game/register.lua
index e0073fc03..06c9c61d2 100644
--- a/builtin/game/register.lua
+++ b/builtin/game/register.lua
@@ -436,8 +436,9 @@ function core.run_callbacks(callbacks, mode, ...)
 end
 
 function core.run_priv_callbacks(name, priv, caller, method)
-	if not core.registered_privileges[priv]["on_" .. method] or
-			not core.registered_privileges[priv]["on_" .. method](name, caller) then
+	local def = core.registered_privileges[priv]
+	if not def or not def["on_" .. method] or
+			not def[priv]["on_" .. method](name, caller) then
 		for _, func in ipairs(core["registered_on_priv_" .. method]) do
 			if not func(name, caller, priv) then
 				break