gpio: sta2x11: use resource management for irqs

Use device resource managed variants of irq_alloc_descs() and
request_irq() and remove the code manually freeing irq resources.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
index 853ca23cad889e0040d9df57fff4807ec5197cd9..39df0620fa38d1d45a006659f7ddf1c5fdec1e04 100644 (file)
--- a/drivers/gpio/gpio-sta2x11.c
+++ b/drivers/gpio/gpio-sta2x11.c
@@ -392,7 +392,8 @@ static int gsta_probe(struct platform_device *dev)
                        gsta_set_config(chip, i, gpio_pdata->pinconfig[i]);
 
        /* 384 was used in previous code: be compatible for other drivers */
-       err = irq_alloc_descs(-1, 384, GSTA_NR_GPIO, NUMA_NO_NODE);
+       err = devm_irq_alloc_descs(&dev->dev, -1, 384,
+                                  GSTA_NR_GPIO, NUMA_NO_NODE);
        if (err < 0) {
                dev_warn(&dev->dev, "sta2x11 gpio: Can't get irq base (%i)\n",
                         -err);
@@ -401,29 +402,23 @@ static int gsta_probe(struct platform_device *dev)
        chip->irq_base = err;
        gsta_alloc_irq_chip(chip);
 
-       err = request_irq(pdev->irq, gsta_gpio_handler,
-                            IRQF_SHARED, KBUILD_MODNAME, chip);
+       err = devm_request_irq(&dev->dev, pdev->irq, gsta_gpio_handler,
+                              IRQF_SHARED, KBUILD_MODNAME, chip);
        if (err < 0) {
                dev_err(&dev->dev, "sta2x11 gpio: Can't request irq (%i)\n",
                        -err);
-               goto err_free_descs;
+               return err;
        }
 
        err = devm_gpiochip_add_data(&dev->dev, &chip->gpio, chip);
        if (err < 0) {
                dev_err(&dev->dev, "sta2x11 gpio: Can't register (%i)\n",
                        -err);
-               goto err_free_irq;
+               return err;
        }
 
        platform_set_drvdata(dev, chip);
        return 0;
-
-err_free_irq:
-       free_irq(pdev->irq, chip);
-err_free_descs:
-       irq_free_descs(chip->irq_base, GSTA_NR_GPIO);
-       return err;
 }
 
 static struct platform_driver sta2x11_gpio_platform_driver = {