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watchdog: aspeed: Propagate errors from optional IRQ lookup

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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 IRQ is available, while other errors should be propagated.

Propagate errors such as -EPROBE_DEFER and -EINVAL instead of continuing
probe without the IRQ.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://lore.kernel.org/r/20260807081652.38692-4-phucduc.bui@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
bui duc phuc
2026-08-10 09:00:05 -07:00
committed by Guenter Roeck
parent 553edb793e
commit 1f3c3fa76d
1 changed files with 2 additions and 0 deletions
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drivers/watchdog/aspeed_wdt.c
+2
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@@ -429,6 +429,8 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
if (wdt->cfg->irq_mask) {
int irq = platform_get_irq_optional(pdev, 0);
if (irq < 0 && irq != -ENXIO)
return irq;
if (irq > 0) {
ret = devm_request_irq(dev, irq, aspeed_wdt_irq,
IRQF_SHARED, dev_name(dev),