iio: adc: stm32-adc: Fix race in installing chained IRQ handler

Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().

Fixes: 1add698 ("iio: adc: Add support for STM32 ADC core")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Tested-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://patch.msgid.link/20250515083101.3811350-1-nichen@iscas.ac.cn
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: Chen Ni

drivers/iio/adc/stm32-adc-core.c

@@ -430,10 +430,9 @@ static int stm32_adc_irq_probe(struct platform_device *pdev,
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < priv->cfg->num_irqs; i++) {
-		irq_set_chained_handler(priv->irq[i], stm32_adc_irq_handler);
-		irq_set_handler_data(priv->irq[i], priv);
-	}
+	for (i = 0; i < priv->cfg->num_irqs; i++)
+		irq_set_chained_handler_and_data(priv->irq[i],
+						 stm32_adc_irq_handler, priv);
 
 	return 0;
 }