From cebd78a8c5624b5cf04c39c3335a5fc8670a7b69 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@linux.intel.com>
Date: Wed, 17 Jun 2009 16:33:33 -0400
Subject: [PATCH] Fix pci_claim_resource
Instead of starting from the iomem or ioport roots, start from the
parent bus' resources. This fixes a bug where child resources would
appear above their parents resources if they had the same size.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Tested-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/pci/setup-res.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 3039fcb86afc..12403516776a 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -99,11 +99,11 @@ void pci_update_resource(struct pci_dev *dev, int resno)
int pci_claim_resource(struct pci_dev *dev, int resource)
{
struct resource *res = &dev->resource[resource];
- struct resource *root = NULL;
+ struct resource *root;
char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge";
int err;
- root = pcibios_select_root(dev, res);
+ root = pci_find_parent_resource(dev, res);
err = -EINVAL;
if (root != NULL)
--
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