From 3f58055d53717a21ea36229445bdeaa1fbc4afbf Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Fri, 14 Nov 2014 17:33:44 +0100
Subject: Avoid strdup(NULL)

---
 src/dw-hdfsee.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/dw-hdfsee.c b/src/dw-hdfsee.c
index 4bb60b8d..dea74c3f 100644
--- a/src/dw-hdfsee.c
+++ b/src/dw-hdfsee.c
@@ -2481,8 +2481,11 @@ DisplayWindow *displaywindow_open(char *filename, char *geom_filename,
 	dw->multi_event = 0;
 	dw->curr_event = 0;
 	dw->ev_list = NULL;
-	dw->geom_filename = strdup(geom_filename);
-
+	if ( dw->geom_filename != NULL ) {
+		dw->geom_filename = strdup(geom_filename);
+	} else {
+		dw->geom_filename = NULL;
+	}
 	dw->image->det = det_geom;
 	dw->image->beam = beam;
 	dw->image->lambda = 0.0;
-- 
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