From 3afe5afea4536c613f814fc094088c2074c74915 Mon Sep 17 00:00:00 2001
From: Soeren Apel <soeren@apelpie.net>
Date: Wed, 22 Mar 2017 20:05:38 +0100
Subject: [PATCH] LogicSignal: Don't depend on device_ being valid

---
 pv/view/logicsignal.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pv/view/logicsignal.cpp b/pv/view/logicsignal.cpp
index f78170b0..440a1190 100644
--- a/pv/view/logicsignal.cpp
+++ b/pv/view/logicsignal.cpp
@@ -347,6 +347,10 @@ void LogicSignal::init_trigger_actions(QWidget *parent)
 
 const vector<int32_t> LogicSignal::get_trigger_types() const
 {
+	// We may not be associated with a device
+	if (!device_)
+		return vector<int32_t>();
+
 	const auto sr_dev = device_->device();
 	if (sr_dev->config_check(ConfigKey::TRIGGER_MATCH, Capability::LIST)) {
 		const Glib::VariantContainerBase gvar =
-- 
2.30.2