Fixed MutexLocker to not work on a copy

The Mutex class wasn't meant to be copied around. Silly last minute
refactorings leading to untested code...

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/updatewindow.cpp b/src/gui/updatewindow.cpp
index 6083725e..c0344b72 100644
--- a/src/gui/updatewindow.cpp
+++ b/src/gui/updatewindow.cpp
@@ -164,7 +164,7 @@ void UpdaterWindow::setProgress(float p)
 void UpdaterWindow::setLabel(const std::string &str)
 {
     // Do delayed label text update, since Guichan isn't thread-safe
-    MutexLocker lock(mLabelMutex);
+    MutexLocker lock(&mLabelMutex);
     mNewLabelCaption = str;
 }
 
@@ -410,7 +410,7 @@ void UpdaterWindow::logic()
 
     // Synchronize label caption when necessary
     {
-        MutexLocker lock(mLabelMutex);
+        MutexLocker lock(&mLabelMutex);
 
         if (mLabel->getCaption() != mNewLabelCaption)
         {