From 27bda46926915e7ed171e8eaa304c5b241d69e6f Mon Sep 17 00:00:00 2001
From: raster <raster@7cbeb6ba-43b4-40fd-8cce-4c39aea84d33>
Date: Mon, 18 Jun 2012 11:18:46 +0000
Subject: [PATCH] fix backscroll reconfig segv

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/terminology@72384 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33
---
 src/bin/termpty.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/bin/termpty.c b/src/bin/termpty.c
index 83b0a4f..b28aa2a 100644
--- a/src/bin/termpty.c
+++ b/src/bin/termpty.c
@@ -44,6 +44,7 @@ _text_save_top(Termpty *ty)
 {
    Termsave *ts;
 
+   if (ty->backmax <= 0) return;
    ts = malloc(sizeof(Termsave) + ((ty->w - 1) * sizeof(Termcell)));
    ts->w = ty->w;
    _text_copy(ty, ty->screen, ts->cell, ty->w);
@@ -1608,7 +1609,10 @@ termpty_backscroll_set(Termpty *ty, int size)
           }
         free(ty->back);
      }
-   ty->back = calloc(1, sizeof(Termsave *) * ty->backmax);
+   if (size > 0)
+     ty->back = calloc(1, sizeof(Termsave *) * size);
+   else
+     ty->back = NULL;
    ty->backscroll_num = 0;
    ty->backpos = 0;
    ty->backmax = size;
-- 
2.7.4