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Subject[PATCH 1/5] iommu/rockchip: fix devm_request_irq and devm_free_irq parameter
Date
From: Simon <xxm@rock-chips.com>

When rk_iommu_attach_device or rk_iommu_detach_device be called, the second
parameter "dev" represent the device who own the iommu, so it is not resonable
using "dev" for devm_request_irq's first parameter. To avoid potential error,
we must use iommu device itself "iommu->dev" instead, the same as devm_free_irq.

Signed-off-by: Simon <xxm@rock-chips.com>
---
drivers/iommu/rockchip-iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index c7d6156..ec0ce62 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -807,7 +807,7 @@ static int rk_iommu_attach_device(struct iommu_domain *domain,

iommu->domain = domain;

- ret = devm_request_irq(dev, iommu->irq, rk_iommu_irq,
+ ret = devm_request_irq(iommu->dev, iommu->irq, rk_iommu_irq,
IRQF_SHARED, dev_name(dev), iommu);
if (ret)
return ret;
@@ -860,7 +860,7 @@ static void rk_iommu_detach_device(struct iommu_domain *domain,
}
rk_iommu_disable_stall(iommu);

- devm_free_irq(dev, iommu->irq, iommu);
+ devm_free_irq(iommu->dev, iommu->irq, iommu);

iommu->domain = NULL;

--
1.9.1
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