gpio: mxc: use devm_irq_alloc_descs()

This driver never frees the interrupt descriptors it allocates. Fix
it by using the resource managed version of irq_alloc_descs().

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

diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index c1a1e00b8cb024f12d6243226fc01de4aa37064a..3abea3f0b307e143848686dd935ee0745a414eec 100644 (file)
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -471,7 +471,7 @@ static int mxc_gpio_probe(struct platform_device *pdev)
        if (err)
                goto out_bgio;
 
-       irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
+       irq_base = devm_irq_alloc_descs(&pdev->dev, -1, 0, 32, numa_node_id());
        if (irq_base < 0) {
                err = irq_base;
                goto out_bgio;
@@ -481,7 +481,7 @@ static int mxc_gpio_probe(struct platform_device *pdev)
                                             &irq_domain_simple_ops, NULL);
        if (!port->domain) {
                err = -ENODEV;
-               goto out_irqdesc_free;
+               goto out_bgio;
        }
 
        /* gpio-mxc can be a generic irq chip */
@@ -495,8 +495,6 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 
 out_irqdomain_remove:
        irq_domain_remove(port->domain);
-out_irqdesc_free:
-       irq_free_descs(irq_base, 32);
 out_bgio:
        dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, err);
        return err;