On module remove, if we do not call trigger remove, the trigger stays in the subsystem, and on further module insert, we will have multiple triggers, and the old one is not usable. Have to call the remove function on module remove to solve this.
Signed-off-by: Eugen Hristev <[email protected]> --- drivers/iio/adc/at91-sama5d2_adc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 4eff835..7b9febc 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -1180,6 +1180,9 @@ static int at91_adc_remove(struct platform_device *pdev) struct iio_dev *indio_dev = platform_get_drvdata(pdev); struct at91_adc_state *st = iio_priv(indio_dev); + if (st->selected_trig->hw_trig) + devm_iio_trigger_unregister(&indio_dev->dev, st->trig); + iio_device_unregister(indio_dev); at91_adc_dma_disable(pdev); -- 2.7.4
