Slideshow reduce race condition when background loading picture.

diff --git a/xbmc/pictures/GUIWindowSlideShow.cpp b/xbmc/pictures/GUIWindowSlideShow.cpp
index 9b88ff7..ba32925 100644 (file)
--- a/xbmc/pictures/GUIWindowSlideShow.cpp
+++ b/xbmc/pictures/GUIWindowSlideShow.cpp
@@ -499,6 +499,8 @@ void CGUIWindowSlideShow::Process(unsigned int currentTime, CDirtyRegionList &re
     return;
   }
 
+  CSingleLock lock(m_slideSection);
+
   if (!m_Image[m_iCurrentPic].IsLoaded() && !m_pBackgroundLoader->IsLoading())
   { // load first image
     CFileItemPtr item = m_slides->Get(m_iCurrentSlide);