3 files changed, 2 insertions, 7 deletions

diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 550df481accd..787c52ca49c3 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -3,12 +3,6 @@
 #include <linux/module.h>
 #include <linux/bootmem.h>
 
-#ifdef CONFIG_DEBUG_PER_CPU_MAPS
-# define DBG(x...) printk(KERN_DEBUG x)
-#else
-# define DBG(x...)
-#endif
-
 /*
  * Which logical CPUs are on which nodes
  */
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index acc15b23b743..64121a18b8cb 100644
--- a/arch/x86/mm/pat.c
+++ b/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/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
index f537087bb740..f20eeec85a86 100644
--- a/arch/x86/mm/pat_rbtree.c
+++ b/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;