Fix pci_claim_resource

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From: Linux Kernel Mailing List
Date: Wednesday, June 17, 2009 - 10:59 pm

Gitweb:     http://git.kernel.org/linus/cebd78a8c5624b5cf04c39c3335a5fc8670a7b69
Commit:     cebd78a8c5624b5cf04c39c3335a5fc8670a7b69
Parent:     7cc47662197b3050a974a6c6aed52291bb38ded0
Author:     Matthew Wilcox <willy@linux.intel.com>
AuthorDate: Wed Jun 17 16:33:33 2009 -0400
Committer:  Linus Torvalds <torvalds@linux-foundation.org>
CommitDate: Wed Jun 17 14:04:42 2009 -0700

    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 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 3039fcb..1240351 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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Fix pci_claim_resource, Linux Kernel Mailing ..., (Wed Jun 17, 10:59 pm)