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Subject[PATCH 05/12] gpio: ml-ioh: use resource management for irqs
Date
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>
---
drivers/gpio/gpio-ml-ioh.c | 28 +++++++---------------------
1 file changed, 7 insertions(+), 21 deletions(-)

diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 796a5a4..78896a8 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -459,41 +459,31 @@ static int ioh_gpio_probe(struct pci_dev *pdev,

chip = chip_save;
for (j = 0; j < 8; j++, chip++) {
- irq_base = irq_alloc_descs(-1, IOH_IRQ_BASE, num_ports[j],
- NUMA_NO_NODE);
+ irq_base = devm_irq_alloc_descs(&pdev->dev, -1, IOH_IRQ_BASE,
+ num_ports[j], NUMA_NO_NODE);
if (irq_base < 0) {
dev_warn(&pdev->dev,
"ml_ioh_gpio: Failed to get IRQ base num\n");
- chip->irq_base = -1;
ret = irq_base;
- goto err_irq_alloc_descs;
+ goto err_gpiochip_add;
}
chip->irq_base = irq_base;
ioh_gpio_alloc_generic_chip(chip, irq_base, num_ports[j]);
}

chip = chip_save;
- ret = request_irq(pdev->irq, ioh_gpio_handler,
- IRQF_SHARED, KBUILD_MODNAME, chip);
+ ret = devm_request_irq(&pdev->dev, pdev->irq, ioh_gpio_handler,
+ IRQF_SHARED, KBUILD_MODNAME, chip);
if (ret != 0) {
dev_err(&pdev->dev,
"%s request_irq failed\n", __func__);
- goto err_request_irq;
+ goto err_gpiochip_add;
}

pci_set_drvdata(pdev, chip);

return 0;

-err_request_irq:
- chip = chip_save;
-err_irq_alloc_descs:
- while (--j >= 0) {
- chip--;
- irq_free_descs(chip->irq_base, num_ports[j]);
- }
-
- chip = chip_save;
err_gpiochip_add:
while (--i >= 0) {
chip--;
@@ -524,12 +514,8 @@ static void ioh_gpio_remove(struct pci_dev *pdev)

chip_save = chip;

- free_irq(pdev->irq, chip);
-
- for (i = 0; i < 8; i++, chip++) {
- irq_free_descs(chip->irq_base, num_ports[i]);
+ for (i = 0; i < 8; i++, chip++)
gpiochip_remove(&chip->gpio);
- }

chip = chip_save;
pci_iounmap(pdev, chip->base);
--
2.9.3
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