iio: adc: ad_sigma_delta: fix irq_flags on irq request

commit e81bb58 upstream.

With commit 7b0c9f8 ("iio: adc: ad_sigma_delta: Add optional irq
selection"), we can get the irq line from struct ad_sigma_delta_info
instead of the spi device. However, in devm_ad_sd_probe_trigger(), when
getting the irq_flags with irq_get_trigger_type() we are still using
the spi device irq instead of the one used for devm_request_irq().

Fixes: 7b0c9f8 ("iio: adc: ad_sigma_delta: Add optional irq selection")
Signed-off-by: Nuno Sa <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

drivers/iio/adc/ad_sigma_delta.c

@@ -568,7 +568,7 @@ EXPORT_SYMBOL_NS_GPL(ad_sd_validate_trigger, IIO_AD_SIGMA_DELTA);
 static int devm_ad_sd_probe_trigger(struct device *dev, struct iio_dev *indio_dev)
 {
 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
-	unsigned long irq_flags = irq_get_trigger_type(sigma_delta->spi->irq);
+	unsigned long irq_flags = irq_get_trigger_type(sigma_delta->irq_line);
 	int ret;
 
 	if (dev != &sigma_delta->spi->dev) {