[blam] Also don't use an extra object to lock

[Carlos MartÃn Nieto <cmartin src gnome org>]

commit 4390cd1ea1c45358219cd175417407cf337f2fe9
Author: Carlos MartÃn Nieto <carlos cmartin tk>
Date:   Wed Aug 24 01:17:12 2011 +0200

    Also don't use an extra object to lock
    
    Signed-off-by: Carlos MartÃn Nieto <carlos cmartin tk>

 src/ItemStore.cs |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/ItemStore.cs b/src/ItemStore.cs
index 5845fba..834d5ff 100644
--- a/src/ItemStore.cs
+++ b/src/ItemStore.cs
@@ -16,7 +16,6 @@ namespace Imendio.Blam
         static ItemStore instance = null;
         static string itemfile = Defines.APP_HOMEDIR + "/" + Defines.APP_ITEMSTORE_FILE;
         static string itemfile_tmp = Defines.APP_HOMEDIR + "/" + Defines.APP_ITEMSTORE_FILE + ".tmp";
-        private static object cache_lock = new object();
 
         public static Item Get(string id)
         {
@@ -28,7 +27,7 @@ namespace Imendio.Blam
 			if(instance == null)
 				Load();
 
-			lock(cache_lock){
+			lock(instance.cache){
 				if(instance.cache.ContainsKey(id))
 					return instance.cache[id] as Item;