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SubjectRe: [PATCH] iommu: make iommu_bus_notifier return NOTIFY_DONE rather than error code
On Tue, Apr 18, 2017 at 08:51:48PM +0800, zhichang.yuan wrote:
> In iommu_bus_notifier(), when action is BUS_NOTIFY_ADD_DEVICE, it will return
> 'ops->add_device(dev)' directly. But ops->add_device will return ERR_VAL, such
> as -ENODEV. These value will make notifier_call_chain() not to traverse the
> remain nodes in struct notifier_block list.
> This patch revises iommu_bus_notifier() to return NOTIFY_DONE when some errors
> heppened in ops->add_device().
> Signed-off-by: zhichang.yuan <>

Applied, thanks.

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