From d7fa8067fee81284fe0f4b5bbb7cbcc2e0522bb3 Mon Sep 17 00:00:00 2001
From: grejppi <grejppi@gmail.com>
Date: Fri, 19 Aug 2016 02:23:46 +0300
Subject: [PATCH] really remove all controllers while removing all controllers
 (#2980)

fix #2979
---
 src/core/Song.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/Song.cpp b/src/core/Song.cpp
index 376a74349..845540f93 100644
--- a/src/core/Song.cpp
+++ b/src/core/Song.cpp
@@ -1217,9 +1217,9 @@ void Song::restoreControllerStates( const QDomElement & element )
 
 void Song::removeAllControllers()
 {
-	for (int i = 0; i < m_controllers.size(); ++i)
+	while (m_controllers.size() != 0)
 	{
-		removeController(m_controllers.at(i));
+		removeController(m_controllers.at(0));
 	}
 
 	m_controllers.clear();