output/osx: check `started` in Close() and Cancel()

fe5b81e1 · Max Kellermann · f032925c · fe5b81e1
Commit fe5b81e1 authored Jul 02, 2020 by Max Kellermann
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OSXOutputPlugin.cxx src/output/plugins/OSXOutputPlugin.cxx +5 -0

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--- a/src/output/plugins/OSXOutputPlugin.cxx
+++ b/src/output/plugins/OSXOutputPlugin.cxx
@@ -667,6 +667,7 @@ OSXOutput::Disable() noexcept
 void
 OSXOutput::Close() noexcept
 {
+	if (started)
 		AudioOutputUnitStop(au);
 	AudioUnitUninitialize(au);
 	delete ring_buffer;
@@ -821,7 +822,11 @@ bool OSXOutput::Pause()
 void
 OSXOutput::Cancel() noexcept
 {
+	if (started) {
 		AudioOutputUnitStop(au);
+		started = false;
+	}
+
 	ring_buffer->reset();
 #ifdef ENABLE_DSD
 	pcm_export->Reset();