1 files changed, 1 insertions, 1 deletions

diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 2e0aa853a4bc..9b39dea6682f 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -461,7 +461,7 @@ void __init at32_init_pio(struct platform_device *pdev)
                 clk_enable(pio->clk);
 
         pio->pdev = pdev;
-        pio->regs = ioremap(regs->start, regs->end - regs->start + 1);
+        pio->regs = ioremap(regs->start, resource_size(regs));
 
         /* start with irqs disabled and acked */
         pio_writel(pio, IDR, ~0UL);