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: Alex Smith <alex.smith@xxxxxxxxxx>
Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@xxxxxxxxxx>
Cc: dmaengine@xxxxxxxxxxxxxxx
---
Changes in v3:
- New patch.
---
drivers/dma/dma-jz4780.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 92954cde0566..e05aae7bd283 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -866,9 +866,15 @@ err_free_irq:
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;
}
--
2.4.6
--
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