From 2fd0cd4ea1ef32e048101e1053b729b2ca63d00c Mon Sep 17 00:00:00 2001
From: Dirk Hohndel <dirk@hohndel.org>
Date: Tue, 30 Mar 2021 14:03:50 -0700
Subject: [PATCH] selection: prevent use after free crash

This is hiding a bigger issue in the way changes are propagated through
the code, but it should stop an annoying crash in 5.0 from happening.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 stats/statsview.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/stats/statsview.cpp b/stats/statsview.cpp
index 148611cfc..d6ebe6520 100644
--- a/stats/statsview.cpp
+++ b/stats/statsview.cpp
@@ -377,6 +377,9 @@ void StatsView::replotIfVisible()
 
 void StatsView::divesSelected(const QVector<dive *> &dives)
 {
+	if (dive_table.nr <= 0)
+		// there are no dives, don't bother (this can happen during reset, for example)
+		return;
 	if (isVisible()) {
 		for (auto &series: series)
 			series->divesSelected(dives);