PCI: don't say we claimed a resource if we failed

pci_claim_resource() can fail, so pay attention and only claim success
when it actually succeeded.  If pci_claim_resource() fails, it prints a
useful diagnostic.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f6bbb9c89e3d..3ea0b29c0104 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -368,8 +368,9 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
                 bus_region.end = res->end;
                 pcibios_bus_to_resource(dev, res, &bus_region);
 
-                pci_claim_resource(dev, nr);
-                dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name);
+                if (pci_claim_resource(dev, nr) == 0)
+                        dev_info(&dev->dev, "quirk: %pR claimed by %s\n",
+                                 res, name);
         }
 }