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SubjectRe: [PATCH net] PCI: fix the return value for the pci_find_pcie_root_port()
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From: Ding Tianhong <dingtianhong@huawei.com>
Date: Thu, 17 Aug 2017 10:25:30 +0800

> The pci_find_pcie_root_port() would return NULL if the given
> dev is already a Root Port, it looks like unfriendly to the
> PCIe Root Port device, Thierry and Bjorn suggest to let this
> function return the given dev under this circumstances.
>
> Fixes: 0e405232871d6 ("PCI: fix oops when try to find Root Port for a PCI device")
> Suggested-by: Thierry Reding <thierry.reding@gmail.com>
> Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>

Bjorn, please review and ACK so Linus doesn't rip my head off again
:-)

Thanks.

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