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spi: mtk-nor: 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.

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://patch.msgid.link/20260807102932.45785-1-phucduc.bui@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
bui duc phuc 2026-08-07 17:29:30 +07:00 committed by Mark Brown
parent 32c55bfb29
commit 356d5869bc
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GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 0 deletions
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5
drivers/spi/spi-mtk-nor.c
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@ -895,6 +895,10 @@ static int mtk_nor_probe(struct platform_device *pdev)
irq = platform_get_irq_optional(pdev, 0);
if (irq < 0) {
if (irq != -ENXIO) {
ret = irq;
goto err_disable_clk;
}
dev_warn(sp->dev, "IRQ not available.");
} else {
ret = devm_request_irq(sp->dev, irq, mtk_nor_irq_handler, 0,
@ -928,6 +932,7 @@ static int mtk_nor_probe(struct platform_device *pdev)
pm_runtime_set_suspended(&pdev->dev);
pm_runtime_dont_use_autosuspend(&pdev->dev);
err_disable_clk:
mtk_nor_disable_clk(sp);
return ret;