1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 0eb572eda406..2610bd93c896 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -560,10 +560,10 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags)
 {
         unsigned long id_sz;
 
-        if (base >= __pa(high_memory))
+        if (base > __pa(high_memory-1))
                 return 0;
 
-        id_sz = (__pa(high_memory) < base + size) ?
+        id_sz = (__pa(high_memory-1) <= base + size) ?
                                 __pa(high_memory) - base :
                                 size;