1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index a3c92770e422..45ebb14c5c27 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -107,7 +107,7 @@ static resource_size_t pcibios_io_size(const struct pci_controller *hose)
 #ifdef CONFIG_PPC64
         return hose->pci_io_size;
 #else
-        return hose->io_resource.end - hose->io_resource.start + 1;
+        return resource_size(&hose->io_resource);
 #endif
 }