1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c
index 09e9d6fb7411..81c052b1353e 100644
--- a/arch/powerpc/platforms/83xx/mpc836x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c
@@ -76,7 +76,7 @@ static void __init mpc836x_mds_setup_arch(void)
                 struct resource res;
 
                 of_address_to_resource(np, 0, &res);
-                bcsr_regs = ioremap(res.start, res.end - res.start +1);
+                bcsr_regs = ioremap(res.start, resource_size(&res));
                 of_node_put(np);
         }