From f59c925f8b0a1ee55bf7d7da75f0e20a899c980d Mon Sep 17 00:00:00 2001
From: Robert Milasan <rmilasan@suse.com>
Date: Tue, 20 Jan 2015 13:33:37 +0100
Subject: [PATCH] fix possible segfault in chansrv if DISPLAY is not set

---
 sesman/chansrv/chansrv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sesman/chansrv/chansrv.c b/sesman/chansrv/chansrv.c
index af2f6957..29e8c106 100644
--- a/sesman/chansrv/chansrv.c
+++ b/sesman/chansrv/chansrv.c
@@ -1534,7 +1534,9 @@ main(int argc, char **argv)
 
     display_text = g_getenv("DISPLAY");
     LOGM((LOG_LEVEL_INFO, "main: DISPLAY env var set to %s", display_text));
-    get_display_num_from_display(display_text);
+
+    if (display_text)
+        get_display_num_from_display(display_text);
 
     if (g_display_num == 0)
     {