[PATCH] iio: adc: sophgo-saradc: Handle errors from optional IRQ lookup
| Newsgroups | org.kernel.vger.linux-iio,dev.linux.lists.sophgo,org.kernel.vger.linux-kernel |
|---|---|
| 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 optional IRQ is available. Other errors, such as -EPROBE_DEFER and -EINVAL, should be propagated so that the caller can handle them appropriately. Propagate negative errors other than -ENXIO. Signed-off-by: bui duc phuc <[email protected]> --- drivers/iio/adc/sophgo-cv1800b-adc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/adc/sophgo-cv1800b-adc.c b/drivers/iio/adc/sophgo-cv1800b-adc.c index bdc3e1326a9a..c6eed09acfcd 100644 --- a/drivers/iio/adc/sophgo-cv1800b-adc.c +++ b/drivers/iio/adc/sophgo-cv1800b-adc.c @@ -182,6 +182,8 @@ static int cv1800b_adc_probe(struct platform_device *pdev) return PTR_ERR(saradc->regs); saradc->irq = platform_get_irq_optional(pdev, 0); + if (saradc->irq < 0 && saradc->irq != -ENXIO) + return saradc->irq; if (saradc->irq > 0) { init_completion(&saradc->completion); ret = devm_request_irq(dev, saradc->irq, -- 2.43.0