From: Hanna Hawa <hannah@xxxxxxxxxxx>
dmaengine device should explicitly call devm_free_irq() when using
devm_request_irq().
The irq is still ON when devices remove is executed and irq should be
quiesced before remove is completed.
Signed-off-by: Hanna Hawa <hannah@xxxxxxxxxxx>
---
drivers/dma/mv_xor_v2.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index c6589cc..e16083a 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -174,6 +174,7 @@ struct mv_xor_v2_device {
int desc_size;
unsigned int npendings;
unsigned int hw_queue_idx;
+ struct msi_desc *msi_desc;
};
/**
@@ -780,6 +781,7 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
msi_desc = first_msi_entry(&pdev->dev);
if (!msi_desc)
goto free_msi_irqs;
+ xor_dev->msi_desc = msi_desc;
ret = devm_request_irq(&pdev->dev, msi_desc->irq,
mv_xor_v2_interrupt_handler, 0,
@@ -897,6 +899,8 @@ static int mv_xor_v2_remove(struct platform_device *pdev)
xor_dev->desc_size * MV_XOR_V2_DESC_NUM,
xor_dev->hw_desq_virt, xor_dev->hw_desq);
+ devm_free_irq(&pdev->dev, xor_dev->msi_desc->irq, xor_dev);
+
platform_msi_domain_free_irqs(&pdev->dev);
clk_disable_unprepare(xor_dev->clk);
--
1.9.1
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