From 6fc63aea29baa683d987996c0d4159ff1105c260 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Tue, 4 Dec 2012 16:52:46 +0100
Subject: get_hkl: Fix a segfault

---
 src/get_hkl.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/get_hkl.c b/src/get_hkl.c
index 9a966ef9..7b66e427 100644
--- a/src/get_hkl.c
+++ b/src/get_hkl.c
@@ -537,6 +537,12 @@ int main(int argc, char *argv[])
 
 		RefList *new;
 
+		/* Can't do this if point group is invalid */
+		if ( mero == NULL ) {
+			ERROR("Need point group to trim centrics.\n");
+			return 1;
+		}
+
 		STATUS("Trimming duplicate reflections in %s\n",
 		       symmetry_name(mero));
 		new = trim_centrics(input, mero);
-- 
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