gpio: omap: Use devm_ioremap_resource()

Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 3 insertions, 17 deletions

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 424319061e09..19b886c21b1d 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1214,24 +1214,10 @@ static int omap_gpio_probe(struct platform_device *pdev)
 
         /* Static mapping, never released */
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (unlikely(!res)) {
-                dev_err(dev, "Invalid mem resource\n");
-                irq_domain_remove(bank->domain);
-                return -ENODEV;
-        }
-
-        if (!devm_request_mem_region(dev, res->start, resource_size(res),
-                                     pdev->name)) {
-                dev_err(dev, "Region already claimed\n");
+        bank->base = devm_ioremap_resource(dev, res);
+        if (IS_ERR(bank->base)) {
                 irq_domain_remove(bank->domain);
-                return -EBUSY;
-        }
-
-        bank->base = devm_ioremap(dev, res->start, resource_size(res));
-        if (!bank->base) {
-                dev_err(dev, "Could not ioremap\n");
-                irq_domain_remove(bank->domain);
-                return -ENOMEM;
+                return PTR_ERR(bank->base);
         }
 
         platform_set_drvdata(pdev, bank);