From f967a44343e407811898ddac97abc69b293e9810 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Mon, 22 Mar 2010 16:34:05 -0600
Subject: [PATCH] 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>
---
 drivers/pci/quirks.c | 5 +++--
 1 file 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);
 	}
 }