diff options
Diffstat (limited to 'drivers/pci/setup-res.c')
| -rw-r--r-- | drivers/pci/setup-res.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 7f7652176fc5..6e443135ba24 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -111,18 +111,23 @@ int pci_claim_resource(struct pci_dev *dev, int resource) struct resource *res = &dev->resource[resource]; struct resource *root, *conflict; + if (res->flags & IORESOURCE_UNSET) { + dev_info(&dev->dev, "can't claim BAR %d %pR: no address assigned\n", + resource, res); + return -EINVAL; + } + root = pci_find_parent_resource(dev, res); if (!root) { - dev_info(&dev->dev, "no compatible bridge window for %pR\n", - res); + dev_info(&dev->dev, "can't claim BAR %d %pR: no compatible bridge window\n", + resource, res); return -EINVAL; } conflict = request_resource_conflict(root, res); if (conflict) { - dev_info(&dev->dev, - "address space collision: %pR conflicts with %s %pR\n", - res, conflict->name, conflict); + dev_info(&dev->dev, "can't claim BAR %d %pR: address conflict with %s %pR\n", + resource, res, conflict->name, conflict); return -EBUSY; } |