Lorenzo Pieralisi 902d886d44 MIPS: PCI: Fix pcibios_scan_bus() NULL check code path
If pci_scan_root_bus() fails (ie returns NULL) pcibios_scan_bus() must
return immediately since the struct pci_bus pointer it returns is not valid
and cannot be used.

Move code checking the pci_scan_root_bus() return value to reinstate proper
pcibios_scanbus() error path behaviour.

Fixes: 88555b481958 ("MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC")
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@imgtec.com>
2017-07-31 14:37:53 -05:00
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