From 061d497df07c5f0497e7abc311e415c6f87dd1f8 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed, 25 Aug 2010 18:31:28 +0200
Subject: [PATCH] Fix crash when reloading history with zero samples

---
 sourcestats.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sourcestats.c b/sourcestats.c
index 172583a..bcd818e 100644
--- a/sourcestats.c
+++ b/sourcestats.c
@@ -172,6 +172,7 @@ SST_CreateInstance(unsigned long refid, IPAddr *addr)
   inst->n_samples = 0;
   inst->runs_samples = 0;
   inst->last_sample = 0;
+  inst->best_single_sample = 0;
   inst->estimated_frequency = 0;
   inst->skew = 2000.0e-6;
   inst->skew_dirn = SST_Skew_Nochange;
@@ -293,6 +294,9 @@ find_best_sample_index(SST_Stats inst, double *times_back)
   double elapsed;
   int i, j, best_index;
 
+  if (!inst->n_samples)
+    return;
+
   best_index = -1;
   best_root_distance = DBL_MAX;