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pinctrl: wpcm450: Correct the fwnode_irq_get() return value check

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fwnode_irq_get() can return zero to indicate IRQ mapping errors.
Handle this case by skipping the interrupt resource.

Fixes: a1d1e0e3d8 ("pinctrl: nuvoton: Add driver for WPCM450")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20220927175509.15695-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2022-09-27 20:55:09 +03:00 committed by Linus Walleij
parent 66db794ad5
commit f4a31facfa
1 changed files with 4 additions and 1 deletions
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5
drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
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@ -1081,10 +1081,13 @@ static int wpcm450_gpio_register(struct platform_device *pdev,
girq->num_parents = 0;
for (i = 0; i < WPCM450_NUM_GPIO_IRQS; i++) {
int irq = fwnode_irq_get(child, i);
int irq;
irq = fwnode_irq_get(child, i);
if (irq < 0)
break;
if (!irq)
continue;
girq->parents[i] = irq;
girq->num_parents++;