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| author | bui duc phuc <phucduc.bui@gmail.com> | 2026-08-07 15:16:52 +0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-08-10 09:00:05 -0700 |
| commit | 1f3c3fa76ddbc2eb92b60c5d4db24d7f702a7811 (patch) | |
| tree | fa1e60029a1a1eecabda279f83b7d62709e02b46 | |
| parent | 553edb793e5be81a0d9bdb7b5aa2f9f1e0eb237b (diff) | |
| download | linux-1f3c3fa76ddbc2eb92b60c5d4db24d7f702a7811.tar.gz linux-1f3c3fa76ddbc2eb92b60c5d4db24d7f702a7811.zip | |
watchdog: aspeed: Propagate errors from optional IRQ lookup
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>
| -rw-r--r-- | drivers/watchdog/aspeed_wdt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c index c9e79851504c..48454ac86074 100644 --- a/drivers/watchdog/aspeed_wdt.c +++ b/drivers/watchdog/aspeed_wdt.c @@ -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), |