diff --git a/[refs] b/[refs]
index 6f74391a4f5e..8c2a34bfab77 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 055c47272b8f5679d08ccc57efea3cb4aaeb5fc6
+refs/heads/master: 6a4f3b523779b67e7d560ed42652f8a59f2f9782
diff --git a/trunk/arch/x86/mm/pat.c b/trunk/arch/x86/mm/pat.c
index acc15b23b743..64121a18b8cb 100644
--- a/trunk/arch/x86/mm/pat.c
+++ b/trunk/arch/x86/mm/pat.c
@@ -302,7 +302,7 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
 		return -EINVAL;
 	}
 
-	new  = kmalloc(sizeof(struct memtype), GFP_KERNEL);
+	new  = kzalloc(sizeof(struct memtype), GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
diff --git a/trunk/arch/x86/mm/pat_rbtree.c b/trunk/arch/x86/mm/pat_rbtree.c
index f537087bb740..f20eeec85a86 100644
--- a/trunk/arch/x86/mm/pat_rbtree.c
+++ b/trunk/arch/x86/mm/pat_rbtree.c
@@ -226,6 +226,7 @@ int rbt_memtype_check_insert(struct memtype *new, unsigned long *ret_type)
 		if (ret_type)
 			new->type = *ret_type;
 
+		new->subtree_max_end = new->end;
 		memtype_rb_insert(&memtype_rbroot, new);
 	}
 	return err;