check whether get_distortion_profile_name() succeeded

2 files changed, 6 insertions, 2 deletions

diff --git a/src/GipfelWidget.cxx b/src/GipfelWidget.cxx
index 80cf05b..3922cce 100644
--- a/src/GipfelWidget.cxx
+++ b/src/GipfelWidget.cxx
@@ -103,11 +103,14 @@ GipfelWidget::load_image(char *file) {
 	md->get_distortion_params(&pan->parms.k0, &pan->parms.k1, &pan->parms.x0);
 	if (isnan(pan->parms.k0)) {
 		char buf[1024];
-		get_distortion_profile_name(buf, sizeof(buf));
-		load_distortion_params(buf);
+		if (get_distortion_profile_name(buf, sizeof(buf)) == 0) {
+			load_distortion_params(buf);
+		}
+
 		if (isnan(pan->parms.k0)) {
 			pan->parms.k0 = 0.0;
 		}
+
 		if (isnan(pan->parms.k1)) {
 			pan->parms.k1 = 0.0;
 		}
diff --git a/src/gipfel.cxx b/src/gipfel.cxx
index b37bd28..b15153d 100644
--- a/src/gipfel.cxx
+++ b/src/gipfel.cxx
@@ -202,6 +202,7 @@ void load_distortion_cb(Fl_Widget *, void *) {
 	char buf[1024];
 	const char * prof_name;
 
+	buf[0] = '\0';
 	gipf->get_distortion_profile_name(buf, sizeof(buf));
 	prof_name = fl_input("Load Distortion Profile", buf);