Detail in 'luaD_inctop'

Protect stack top before possible stack reallocation. (In the current
implementation, a stack reallocation cannot call an emergency
collection, so there is no bug, but it is safer not to depend on that.)

1 files changed, 1 insertions, 1 deletions

diff --git a/ldo.c b/ldo.c
index 9459391f..f825d959 100644
--- a/ldo.c
+++ b/ldo.c
@@ -373,8 +373,8 @@ void luaD_shrinkstack (lua_State *L) {
 
 
 void luaD_inctop (lua_State *L) {
-  luaD_checkstack(L, 1);
   L->top.p++;
+  luaD_checkstack(L, 1);
 }
 
 /* }================================================================== */