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watchdog: dw_wdt: 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.

Instead of only checking for -EPROBE_DEFER, propagate all error codes
returned by platform_get_irq_optional() other than -ENXIO, so that
failures are properly reported to the caller.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://lore.kernel.org/r/20260807081652.38692-3-phucduc.bui@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
bui duc phuc 2026-08-07 15:16:51 +07:00 committed by Guenter Roeck
parent 7528abb515
commit ac4bf51d4d
1 changed files with 1 additions and 1 deletions
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2
drivers/watchdog/dw_wdt.c
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@ -611,7 +611,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
dw_wdt->wdd.info = &dw_wdt_pt_ident;
} else {
if (ret == -EPROBE_DEFER)
if (ret != -ENXIO)
return ret;
dw_wdt->wdd.info = &dw_wdt_ident;