1 files changed, 3 insertions, 3 deletions

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 5fa10bb9604f..8766b0e216c5 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -375,7 +375,7 @@ static acpi_status __init check_mcfg_resource(struct acpi_resource *res,
                 if (!fixmem32)
                         return AE_OK;
                 if ((mcfg_res->start >= fixmem32->address) &&
-                    (mcfg_res->end <= (fixmem32->address +
+                    (mcfg_res->end < (fixmem32->address +
                                       fixmem32->address_length))) {
                         mcfg_res->flags = 1;
                         return AE_CTRL_TERMINATE;
@@ -392,7 +392,7 @@ static acpi_status __init check_mcfg_resource(struct acpi_resource *res,
                 return AE_OK;
 
         if ((mcfg_res->start >= address.minimum) &&
-            (mcfg_res->end <= (address.minimum + address.address_length))) {
+            (mcfg_res->end < (address.minimum + address.address_length))) {
                 mcfg_res->flags = 1;
                 return AE_CTRL_TERMINATE;
         }
@@ -418,7 +418,7 @@ static int __init is_acpi_reserved(u64 start, u64 end, unsigned not_used)
         struct resource mcfg_res;
 
         mcfg_res.start = start;
-        mcfg_res.end = end;
+        mcfg_res.end = end - 1;
         mcfg_res.flags = 0;
 
         acpi_get_devices("PNP0C01", find_mboard_resource, &mcfg_res, NULL);