From ed9dc1c28e254bc91cf84f2a58c5a15e099f984b Mon Sep 17 00:00:00 2001
From: Niels Martin Hansen <nielsm@aegisub.org>
Date: Mon, 20 Aug 2007 18:09:18 +0000
Subject: [PATCH] (Attempt to) fix crashes when scroll events hit the audio
 display and no audio is loaded.

Originally committed to SVN as r1522.
---
 aegisub/audio_display.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/aegisub/audio_display.cpp b/aegisub/audio_display.cpp
index e920a7b75..3fb7e073e 100644
--- a/aegisub/audio_display.cpp
+++ b/aegisub/audio_display.cpp
@@ -731,6 +731,7 @@ void AudioDisplay::SetPosition(int pos) {
 // Update position
 void AudioDisplay::UpdatePosition (int pos,bool IsSample) {
 	// Safeguards
+	if (!provider) return;
 	if (IsSample) pos /= samples;
 	int len = provider->GetNumSamples() / samples;
 	if (pos < 0) pos = 0;