MINOR: lua: reset pointer after use

After releasing the Lua environment, this patch set the only one pointer to
the Lua stack to NULL. This prevents an accidental re-use.

diff --git a/src/hlua.c b/src/hlua.c
index ceeeace6e841d2addccbf30f9cf1608af9035a07..966ed5adb6980ae2489977bab1d81f29f824ee7f 100644 (file)
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -907,6 +907,7 @@ void hlua_ctx_destroy(struct hlua *lua)
        /* The thread is garbage collected by Lua. */
        luaL_unref(lua->T, LUA_REGISTRYINDEX, lua->Mref);
        luaL_unref(gL.T, LUA_REGISTRYINDEX, lua->Tref);
+       lua->T = NULL;
 }
 
 /* This function is used to restore the Lua context when a coroutine