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Commit ae9c02b4 authored by Alex Smith's avatar Alex Smith Committed by Vinod Koul
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dmaengine: jz4780: Kill tasklets before unregistering the device 



Tasklets may have been scheduled as a result of an earlier interrupt
that could still be running. Kill them before unregistering the
device.

Signed-off-by: default avatarAlex Smith <alex.smith@imgtec.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: dmaengine@vger.kernel.org
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent d509a83c

drivers/dma/dma-jz4780.c

+6 −0
Original line number Diff line number Diff line
@@ -866,9 +866,15 @@ static int jz4780_dma_probe(struct platform_device *pdev) 
static int jz4780_dma_remove(struct platform_device *pdev)

{

	struct jz4780_dma_dev *jzdma = platform_get_drvdata(pdev);

	int i;



	of_dma_controller_free(pdev->dev.of_node);



	free_irq(jzdma->irq, jzdma);



	for (i = 0; i < JZ_DMA_NR_CHANNELS; i++)

		tasklet_kill(&jzdma->chan[i].vchan.task);



	dma_async_device_unregister(&jzdma->dma_device);

	return 0;

}