Messages in this thread | | | From | Heiko Stuebner <> | Subject | Re: [PATCH 1/5] iommu/rockchip: fix devm_request_irq and devm_free_irq parameter | Date | Mon, 23 May 2016 11:28:32 +0200 |
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Am Montag, 23. Mai 2016, 09:37:15 schrieb Shunqian Zheng: > From: Simon <xxm@rock-chips.com>
generally a "firstname surename <mail>" is expected, so a first name is not really enough.
> > 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>
same here, and the person sending in the patch also needs a signed-off-by line, so that should look like
Signed-off-by: Simon <xxm@rock-chips.com> Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
The same applies of course for all other affected patches of this series.
After looking at the iommu code, I think the change itself looks sane, so Reviewed-by: Heiko Stuebner <heiko@sntech.de>
although I wonder what we need the devm_* for if we request and free the irqs manually all the time anyway?
Heiko
> --- > 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;
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