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>

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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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drivers/watchdog/dw_wdt.c

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