1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 8247cff1cb3e..3502b9101e6b 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -426,7 +426,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
                     pci_name(bus->self));
 
                 __flush_hash_table_range(&init_mm, res->start + _IO_BASE,
-                                         res->end - res->start + 1);
+                                         res->end + _IO_BASE + 1);
                 return 0;
         }