PCI: Mark invalid BARs as unassigned
If a BAR is not inside any upstream bridge window, or if it conflicts with
another resource, mark it as IORESOURCE_UNSET so we don't try to use it.
We may be able to assign a different address for it.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index b7c3a5e..232f925 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -120,6 +120,7 @@
if (!root) {
dev_info(&dev->dev, "can't claim BAR %d %pR: no compatible bridge window\n",
resource, res);
+ res->flags |= IORESOURCE_UNSET;
return -EINVAL;
}
@@ -127,6 +128,7 @@
if (conflict) {
dev_info(&dev->dev, "can't claim BAR %d %pR: address conflict with %s %pR\n",
resource, res, conflict->name, conflict);
+ res->flags |= IORESOURCE_UNSET;
return -EBUSY;
}