1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c
index 2c64164722d0..1ad748bb39b4 100644
--- a/arch/powerpc/platforms/83xx/usb.c
+++ b/arch/powerpc/platforms/83xx/usb.c
@@ -171,7 +171,7 @@ int mpc831x_usb_cfg(void)
                 of_node_put(np);
                 return ret;
         }
-        usb_regs = ioremap(res.start, res.end - res.start + 1);
+        usb_regs = ioremap(res.start, resource_size(&res));
 
         /* Using on-chip PHY */
         if (prop && (!strcmp(prop, "utmi_wide") ||