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| /openbmc/linux/drivers/pci/ |
| H A D | setup-res.c | diff cd8a4d3657c3f2cf9ce3780707be1debb8fea6e2 Wed Feb 26 12:25:59 CST 2014 Bjorn Helgaas <bhelgaas@google.com> PCI: Check IORESOURCE_UNSET before updating BAR
Check to make sure we don't update a BAR with an address we haven't
assigned.
If we haven't assigned an address to a resource, we shouldn't write it to a
BAR. This isn't a problem for the usual path via pci_assign_resource(),
which clears IORESOURCE_UNSET before calling pci_update_resource(), but
paths like pci_restore_bars() can call this for resources we haven't
assigned.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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