drivers/pci/controller/dwc/pcie-kirin.c:141:1-3: WARNING: PTR_ERR_OR_ZERO can be used

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   fb7d1bcf1602b46f37ada72178516c01a250e434
commit: 6e0832fa432ec99c94caee733c8f5851cf85560b PCI: Collect all native drivers under drivers/pci/controller/
date:   6 weeks ago


coccinelle warnings: (new ones prefixed by >>)

>> drivers/pci/controller/dwc/pcie-kirin.c:141:1-3: WARNING: PTR_ERR_OR_ZERO can be used
   drivers/pci/controller/dwc/pcie-kirin.c:177:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Please review and possibly fold the followup patch.

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