From 52ff3dedaf969544f2ba00091367e1054a202100 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 23 Apr 2020 15:34:25 +0200
Subject: Fix null pointer access

---
 src/x11util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/x11util.c b/src/x11util.c
index dc230b3..c630dc3 100644
--- a/src/x11util.c
+++ b/src/x11util.c
@@ -76,7 +76,7 @@ static void setScreenDpmsFork( const char *xauth, const char *display, int mode
     Display *dpy;
     int dummy;
 
-    if ( xauth[0] != '\0' && strcmp( xauth, "-" ) != 0 ) {
+    if ( xauth != NULL && xauth[0] != '\0' && strcmp( xauth, "-" ) != 0 ) {
         setenv( "XAUTHORITY", xauth, 1 );
     }
     dpy = XOpenDisplay( display );
-- 
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