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Subject[PATCH 3/3] iio: adc: xilinx: prevent touching unclocked h/w on remove
Date
In remove, the clock is disabled before canceling the
delayed work. This means that the delayed work may be
touching unclocked hardware.

Fix by disabling the clock after the delayed work is
fully canceled. This is consistent with the probe error
path order.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
---
drivers/iio/adc/xilinx-xadc-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index 15e1a103f37d..1ae86e7359f7 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -1320,8 +1320,8 @@ static int xadc_remove(struct platform_device *pdev)
iio_triggered_buffer_cleanup(indio_dev);
}
free_irq(xadc->irq, indio_dev);
- clk_disable_unprepare(xadc->clk);
cancel_delayed_work_sync(&xadc->zynq_unmask_work);
+ clk_disable_unprepare(xadc->clk);
kfree(xadc->data);
kfree(indio_dev->channels);

--
2.17.1
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