From 73c6dcbb45269186f204b2212288b6384ce42c9d Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 7 Feb 2017 16:53:21 -0800
Subject: [PATCH] Silence Coverity warning

Fixes https://github.com/behdad/harfbuzz/issues/408
---
 src/hb-ot-shape-complex-arabic.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-ot-shape-complex-arabic.cc b/src/hb-ot-shape-complex-arabic.cc
index 56ec5cd65..57ffc1dc5 100644
--- a/src/hb-ot-shape-complex-arabic.cc
+++ b/src/hb-ot-shape-complex-arabic.cc
@@ -540,7 +540,7 @@ apply_stch (const hb_ot_shape_plan_t *plan,
       /* See if we can improve the fit by adding an extra repeat and squeezing them together a bit. */
       hb_position_t extra_repeat_overlap = 0;
       hb_position_t shortfall = sign * w_remaining - sign * w_repeating * (n_copies + 1);
-      if (shortfall > 0)
+      if (shortfall > 0 && n_repeating > 0)
       {
         ++n_copies;
         hb_position_t excess = (n_copies + 1) * sign * w_repeating - sign * w_remaining;