1 files changed, 2 insertions, 4 deletions

diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index abe8d7e2ebeb..41a80a4fb97e 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -839,8 +839,7 @@ static void __init setup_u3_ht(struct pci_controller* hose)
          * into cfg_addr
          */
         hose->cfg_data = ioremap(cfg_res.start, 0x02000000);
-        hose->cfg_addr = ioremap(self_res.start,
-                                 self_res.end - self_res.start + 1);
+        hose->cfg_addr = ioremap(self_res.start, resource_size(&self_res));
 
         /*
          * /ht node doesn't expose a "ranges" property, we read the register
@@ -1324,8 +1323,7 @@ static void fixup_u4_pcie(struct pci_dev* dev)
                  */
                 if (r->start >= 0xf0000000 && r->start < 0xf3000000)
                         continue;
-                if (!region || (r->end - r->start) >
-                    (region->end - region->start))
+                if (!region || resource_size(r) > resource_size(region))
                         region = r;
         }
         /* Nothing found, bail */