From efe55592b5579be2d57823f84a610c431e386b07 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Wed, 1 Jul 2020 16:33:29 +0200
Subject: Improve error message when peak list is not given in DataTemplate

---
 libcrystfel/src/image-hdf5.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libcrystfel/src')

diff --git a/libcrystfel/src/image-hdf5.c b/libcrystfel/src/image-hdf5.c
index 7d6363ac..767ef6ab 100644
--- a/libcrystfel/src/image-hdf5.c
+++ b/libcrystfel/src/image-hdf5.c
@@ -1066,6 +1066,11 @@ ImageFeatureList *image_hdf5_read_peaks_hdf5(const DataTemplate *dtempl,
 	ImageFeatureList *features;
 	double peak_offset = half_pixel_shift ? 0.5 : 0.0;
 
+	if ( dtempl->peak_list == NULL ) {
+		ERROR("Peak location is not given in geometry file.\n");
+		return NULL;
+	}
+
 	if ( access(filename, R_OK) == -1 ) {
 		ERROR("File does not exist or cannot be read: %s\n",
 		      filename);
-- 
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