From c5ab3a8e0305995ed97fc85a5c190c069794fdb0 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Fri, 24 Mar 2017 15:04:21 +0100
Subject: Propagate error if indexing method is unrecognised

---
 libcrystfel/src/index.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libcrystfel/src/index.c b/libcrystfel/src/index.c
index 028ba5e9..685d0b69 100644
--- a/libcrystfel/src/index.c
+++ b/libcrystfel/src/index.c
@@ -163,6 +163,10 @@ IndexingPrivate *setup_indexing(const char *method_list, UnitCell *cell,
 
 	for ( i=0; i<n; i++ ) {
 		methods[i] = get_indm_from_string(method_strings[i]);
+		if ( methods[i] == INDEXING_ERROR ) {
+			free(methods);
+			return NULL;
+		}
 	}
 
 	ipriv = malloc(sizeof(struct _indexingprivate));
-- 
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