1 files changed, 4 insertions, 4 deletions

diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
index da110bd88346..5f5e69309080 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
@@ -264,7 +264,7 @@ mpc52xx_pci_setup(struct pci_controller *hose,
                          (unsigned long long)res->flags);
                 out_be32(&pci_regs->iw0btar,
                          MPC52xx_PCI_IWBTAR_TRANSLATION(res->start, res->start,
-                                  res->end - res->start + 1));
+                                                        resource_size(res)));
                 iwcr0 = MPC52xx_PCI_IWCR_ENABLE | MPC52xx_PCI_IWCR_MEM;
                 if (res->flags & IORESOURCE_PREFETCH)
                         iwcr0 |= MPC52xx_PCI_IWCR_READ_MULTI;
@@ -278,7 +278,7 @@ mpc52xx_pci_setup(struct pci_controller *hose,
                          res->start, res->end, res->flags);
                 out_be32(&pci_regs->iw1btar,
                          MPC52xx_PCI_IWBTAR_TRANSLATION(res->start, res->start,
-                                  res->end - res->start + 1));
+                                                        resource_size(res)));
                 iwcr1 = MPC52xx_PCI_IWCR_ENABLE | MPC52xx_PCI_IWCR_MEM;
                 if (res->flags & IORESOURCE_PREFETCH)
                         iwcr1 |= MPC52xx_PCI_IWCR_READ_MULTI;
@@ -300,7 +300,7 @@ mpc52xx_pci_setup(struct pci_controller *hose,
         out_be32(&pci_regs->iw2btar,
                  MPC52xx_PCI_IWBTAR_TRANSLATION(hose->io_base_phys,
                                                 res->start,
-                                                res->end - res->start + 1));
+                                                resource_size(res)));
         iwcr2 = MPC52xx_PCI_IWCR_ENABLE | MPC52xx_PCI_IWCR_IO;
 
         /* Set all the IWCR fields at once; they're in the same reg */
@@ -402,7 +402,7 @@ mpc52xx_add_bridge(struct device_node *node)
 
         hose->ops = &mpc52xx_pci_ops;
 
-        pci_regs = ioremap(rsrc.start, rsrc.end - rsrc.start + 1);
+        pci_regs = ioremap(rsrc.start, resource_size(&rsrc));
         if (!pci_regs)
                 return -ENOMEM;