From 643e70c130b2629be12e95574e42addb618045af Mon Sep 17 00:00:00 2001
From: Igor Ehrlich <igor.a.ehrlich@gmail.com>
Date: Wed, 12 Oct 2016 18:42:36 +0300
Subject: [PATCH] Fixed return value of propagatemark in case of propagating a
 table with empty hash part

---
 src/lj_gc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lj_gc.c b/src/lj_gc.c
index c5ff1f04..f314aa23 100644
--- a/src/lj_gc.c
+++ b/src/lj_gc.c
@@ -307,7 +307,7 @@ static size_t propagatemark(global_State *g)
     if (gc_traverse_tab(g, t) > 0)
       black2gray(o);  /* Keep weak tables gray. */
     return sizeof(GCtab) + sizeof(TValue) * t->asize +
-			   sizeof(Node) * (t->hmask + 1);
+	   (t->hmask ? sizeof(Node) * (t->hmask + 1) : 0);
   } else if (LJ_LIKELY(gct == ~LJ_TFUNC)) {
     GCfunc *fn = gco2func(o);
     gc_traverse_func(g, fn);