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    Subject[PATCH 03/22] iommu: Propagate error in add_iommu_group
    Date
    From: Joerg Roedel <jroedel@suse.de>

    Make sure any errors reported from the IOMMU drivers get
    progapated back to the IOMMU core.

    Signed-off-by: Joerg Roedel <jroedel@suse.de>
    ---
    drivers/iommu/iommu.c | 4 +---
    1 file changed, 1 insertion(+), 3 deletions(-)

    diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
    index 755e488..9c9336a 100644
    --- a/drivers/iommu/iommu.c
    +++ b/drivers/iommu/iommu.c
    @@ -750,9 +750,7 @@ static int add_iommu_group(struct device *dev, void *data)

    WARN_ON(dev->iommu_group);

    - ops->add_device(dev);
    -
    - return 0;
    + return ops->add_device(dev);
    }

    static int iommu_bus_notifier(struct notifier_block *nb,
    --
    1.9.1


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