gpio: tz1090: Use resource_size to fix off-by-one

Use resource_size to fix off-by-one resource size calculation

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-tz1090.c b/drivers/gpio/gpio-tz1090.c
index e3024bb..445660a 100644 (file)
--- a/drivers/gpio/gpio-tz1090.c
+++ b/drivers/gpio/gpio-tz1090.c
@@ -573,7 +573,7 @@ static int tz1090_gpio_probe(struct platform_device *pdev)
 
        /* Ioremap the registers */
        priv.reg = devm_ioremap(&pdev->dev, res_regs->start,
-                                res_regs->end - res_regs->start);
+                               resource_size(res_regs));
        if (!priv.reg) {
                dev_err(&pdev->dev, "unable to ioremap registers\n");
                return -ENOMEM;