[PATCH 2/4] watchdog: mediatek: Propagate errors from optional IRQ lookup
[email protected] Fri, 7 Aug 2026 15:16:50 +0700
| Newsgroups | org.infradead.lists.linux-mediatek,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-kernel,org.kernel.vger.linux-watchdog |
|---|---|
| Message-ID | <[email protected]> |
From: bui duc phuc <[email protected]> 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 <[email protected]> --- drivers/watchdog/mtk_wdt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index 91d110646e16..d9c30e4c80e3 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -422,8 +422,8 @@ static int mtk_wdt_probe(struct platform_device *pdev) mtk_wdt->wdt_dev.info = &mtk_wdt_pt_info; mtk_wdt->wdt_dev.pretimeout = WDT_MAX_TIMEOUT / 2; } else { - if (irq == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (irq != -ENXIO) + return irq; mtk_wdt->wdt_dev.info = &mtk_wdt_info; } -- 2.43.0