From 357235404ac616b893080b8eba77064dc7bca7d7 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Sat, 20 Feb 2021 20:10:35 +1000
Subject: [PATCH] AudioStream: Fix a crash when opening device fails

---
 src/common/audio_stream.cpp | 7 ++++++-
 src/common/audio_stream.h   | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/common/audio_stream.cpp b/src/common/audio_stream.cpp
index 5af2a425d..6f129c33a 100644
--- a/src/common/audio_stream.cpp
+++ b/src/common/audio_stream.cpp
@@ -35,7 +35,7 @@ bool AudioStream::Reconfigure(u32 input_sample_rate /* = DefaultInputSampleRate
 
   if (!OpenDevice())
   {
-    EmptyBuffers();
+    LockedEmptyBuffers();
     m_buffer_size = 0;
     m_output_sample_rate = 0;
     m_channels = 0;
@@ -289,6 +289,11 @@ void AudioStream::EmptyBuffers()
 {
   std::unique_lock<std::mutex> lock(m_buffer_mutex);
   std::unique_lock<std::mutex> resampler_lock(m_resampler_mutex);
+  LockedEmptyBuffers();
+}
+
+void AudioStream::LockedEmptyBuffers()
+{
   m_buffer.Clear();
   m_underflow_flag.store(false);
   m_buffer_filling.store(m_wait_for_buffer_fill);
diff --git a/src/common/audio_stream.h b/src/common/audio_stream.h
index 137269cd4..275d66aac 100644
--- a/src/common/audio_stream.h
+++ b/src/common/audio_stream.h
@@ -75,6 +75,7 @@ protected:
   bool SetBufferSize(u32 buffer_size);
   bool IsDeviceOpen() const { return (m_output_sample_rate > 0); }
 
+  void LockedEmptyBuffers();
   u32 GetSamplesAvailable() const;
   u32 GetSamplesAvailableLocked() const;
   void ReadFrames(SampleType* samples, u32 num_frames, bool apply_volume);