From 30d6f09f5eec0fb18d5c87347b5de6124a56a63c Mon Sep 17 00:00:00 2001
From: Joel Holdsworth <joel@airwebreathe.org.uk>
Date: Mon, 6 Apr 2015 10:11:59 +0100
Subject: [PATCH] Session: Catch errors listing the config keys

---
 pv/session.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pv/session.cpp b/pv/session.cpp
index d5126660..2cdc25f8 100644
--- a/pv/session.cpp
+++ b/pv/session.cpp
@@ -400,7 +400,12 @@ shared_ptr<view::Signal> Session::signal_from_channel(
 void Session::read_sample_rate(shared_ptr<sigrok::Device> device)
 {
 	assert(device);
-	const auto keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
+	map< const ConfigKey*, set<sigrok::Capability> > keys;
+
+	try {
+		keys = device->config_keys(ConfigKey::DEVICE_OPTIONS);
+	} catch (const Error) {}
+
 	const auto iter = keys.find(ConfigKey::SAMPLERATE);
 	cur_samplerate_ = (iter != keys.end() &&
 		(*iter).second.find(sigrok::GET) != (*iter).second.end()) ?
-- 
2.30.2