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SubjectRe: [PATCH 4/4] iio: adc: xilinx: Use devm_ functions while requesting irq
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> @@ -1310,7 +1308,6 @@ static int xadc_remove(struct platform_device *pdev)
> {
> struct iio_dev *indio_dev = platform_get_drvdata(pdev);
> struct xadc *xadc = iio_priv(indio_dev);
> - int irq = platform_get_irq(pdev, 0);
>
> iio_device_unregister(indio_dev);
> if (xadc->ops->flags & XADC_FLAGS_BUFFERED) {
> @@ -1318,7 +1315,6 @@ static int xadc_remove(struct platform_device *pdev)
> iio_trigger_free(xadc->convst_trigger);
> iio_triggered_buffer_cleanup(indio_dev);
> }
> - free_irq(irq, indio_dev);

This opens up a race condition. The IRQ needs to be freed before any of
these other things below the free_irq() are executed.

> clk_disable_unprepare(xadc->clk);
> cancel_delayed_work(&xadc->zynq_unmask_work);
> kfree(xadc->data);
>

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