[PATCH 3/4] watchdog: dw_wdt: Propagate errors from optional IRQ lookup
Guenter Roeck
linux at roeck-us.net
Sun Aug 9 08:03:45 PDT 2026
On Fri, Aug 07, 2026 at 03:16:51PM +0700, phucduc.bui at gmail.com wrote:
> From: bui duc phuc <phucduc.bui at gmail.com>
>
> 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 at gmail.com>
Applied.
Thanks,
Guenter
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