From: Marten Richter <marten.richter@freenet.de>
Date: Sat, 3 Nov 2012 07:22:05 +0000 (+0100)
Subject: Fix segfault in boxstack.cc
X-Git-Url: https://git.vomp.tv/gitweb/?a=commitdiff_plain;h=220a1cf437901c3f73c9597fa9255ffa45868055;p=vompclient-marten.git

Fix segfault in boxstack.cc
---

diff --git a/boxstack.cc b/boxstack.cc
index beb8280..5330003 100644
--- a/boxstack.cc
+++ b/boxstack.cc
@@ -281,6 +281,16 @@ void BoxStack::update(Boxx* toUpdate, Region* regionToUpdate)
     toUpdate = boxes[0];
   }
 
+  if (!toUpdate) {
+#ifndef WIN32
+	  pthread_mutex_unlock(&boxLock);
+#else
+	  ReleaseMutex(boxLock);
+#endif
+	  Log::getInstance()->log("BoxStack", Log::DEBUG, "Unlocked for update, no box present");
+	  return ;
+  }
+
   // get the region for the whole box, could be less than that
   // for smaller updates