[PATCH 1/4] gpio: realtek-otto: Handle errors from optional IRQ lookup
| Newsgroups | org.kernel.vger.linux-gpio,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
From: bui duc phuc <[email protected]> platform_get_irq_optional() returns a positive IRQ number on success or a negative error code on failure. For an optional IRQ, -ENXIO indicates that no optional IRQ is available. Other errors, such as -EPROBE_DEFER and -EINVAL, should be propagated so that the caller can handle them appropriately. Propagate negative errors other than -ENXIO. Signed-off-by: bui duc phuc <[email protected]> --- drivers/gpio/gpio-realtek-otto.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpio/gpio-realtek-otto.c b/drivers/gpio/gpio-realtek-otto.c index 4a606bad5848..5d7d28a26544 100644 --- a/drivers/gpio/gpio-realtek-otto.c +++ b/drivers/gpio/gpio-realtek-otto.c @@ -423,6 +423,8 @@ static int realtek_gpio_probe(struct platform_device *pdev) ctrl->chip.gc.owner = THIS_MODULE; irq = platform_get_irq_optional(pdev, 0); + if (irq < 0 && irq != -ENXIO) + return irq; if (!(dev_flags & GPIO_INTERRUPTS_DISABLED) && irq > 0) { girq = &ctrl->chip.gc.irq; gpio_irq_chip_set_chip(girq, &realtek_gpio_irq_chip); -- 2.43.0