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authorBjorn Helgaas <bhelgaas@google.com>2014-02-26 11:26:00 -0700
committerBjorn Helgaas <bhelgaas@google.com>2014-03-19 15:00:14 -0600
commit3cedcc3621289d41bd21c5dbe0b886d57c83a1ea (patch)
treea746035791d4abbd0b9135e8e4bf46890799f6f1 /drivers/pci/pci.c
parentc83bd900aac38552b0d903588bbb084d3b26fe71 (diff)
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PCI: Don't enable decoding if BAR hasn't been assigned an address
Don't enable memory or I/O decoding if we haven't assigned or claimed the BAR's resource. If we enable decoding for a BAR that hasn't been assigned an address, we'll likely cause bus conflicts. This declines to enable decoding for resources with IORESOURCE_UNSET. Note that drivers can use pci_enable_device_io() or pci_enable_device_mem() if they only care about specific types of BARs. In that case, we don't bother checking whether the corresponding resources are assigned or claimed. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci.c')
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