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gpio: pch: 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>
This commit is contained in:
Bartosz Golaszewski 2017-03-04 17:23:32 +01:00 committed by Linus Walleij
parent 2ed36f3013
commit f57f3e6003
1 changed files with 4 additions and 10 deletions
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14
drivers/gpio/gpio-pch.c
View File

@ -403,7 +403,8 @@ static int pch_gpio_probe(struct pci_dev *pdev,
goto err_gpiochip_add;
}
irq_base = irq_alloc_descs(-1, 0, gpio_pins[chip->ioh], NUMA_NO_NODE);
irq_base = devm_irq_alloc_descs(&pdev->dev, -1, 0,
gpio_pins[chip->ioh], NUMA_NO_NODE);
if (irq_base < 0) {
dev_warn(&pdev->dev, "PCH gpio: Failed to get IRQ base num\n");
chip->irq_base = -1;
@ -416,8 +417,8 @@ static int pch_gpio_probe(struct pci_dev *pdev,
iowrite32(msk, &chip->reg->imask);
iowrite32(msk, &chip->reg->ien);
ret = request_irq(pdev->irq, pch_gpio_handler,
IRQF_SHARED, KBUILD_MODNAME, chip);
ret = devm_request_irq(&pdev->dev, pdev->irq, pch_gpio_handler,
IRQF_SHARED, KBUILD_MODNAME, chip);
if (ret != 0) {
dev_err(&pdev->dev,
"%s request_irq failed\n", __func__);
@ -430,7 +431,6 @@ static int pch_gpio_probe(struct pci_dev *pdev,
return 0;
err_request_irq:
irq_free_descs(irq_base, gpio_pins[chip->ioh]);
gpiochip_remove(&chip->gpio);
err_gpiochip_add:
@ -452,12 +452,6 @@ static void pch_gpio_remove(struct pci_dev *pdev)
{
struct pch_gpio *chip = pci_get_drvdata(pdev);
if (chip->irq_base != -1) {
free_irq(pdev->irq, chip);
irq_free_descs(chip->irq_base, gpio_pins[chip->ioh]);
}
gpiochip_remove(&chip->gpio);
pci_iounmap(pdev, chip->base);
pci_release_regions(pdev);