linux-kernel - Re: [Bug 16007] x86/pci Oops with CONFIG_SND_HDA

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Message-ID: <4C12C189.50201@oracle.com>
Date:	Fri, 11 Jun 2010 16:06:49 -0700
From:	Yinghai Lu <yinghai.lu@...cle.com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>,
	Graham Ramsey <ramsey.graham@...world.com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	bugzilla-daemon@...zilla.kernel.org,
	Myron Stowe <myron.stowe@...com>,
	Robert Richter <robert.richter@....com>,
	Harald Welte <HaraldWelte@...tech.com>,
	Joseph Chan <JosephChan@....com.tw>
Subject: Re: [Bug 16007] x86/pci Oops with CONFIG_SND_HDA_INTEL


please check if this one workaround the problem

Thanks

Yinghai Lu

[PATCH] x86, pci: handle fallout pci devices with peer root bus

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 arch/x86/pci/bus_numa.c |    4 +++-
 kernel/resource.c       |    2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

Index: linux-2.6/arch/x86/pci/bus_numa.c
===================================================================
--- linux-2.6.orig/arch/x86/pci/bus_numa.c
+++ linux-2.6/arch/x86/pci/bus_numa.c
@@ -22,7 +22,8 @@ void x86_pci_root_bus_res_quirks(struct
 		return;
 
 	for (i = 0; i < pci_root_num; i++) {
-		if (pci_root_info[i].bus_min == b->number)
+		if (pci_root_info[i].bus_min <= b->number &&
+		    pci_root_info[i].bus_max >= b->number)
 			break;
 	}
 
@@ -37,6 +38,7 @@ void x86_pci_root_bus_res_quirks(struct
 	for (j = 0; j < info->res_num; j++) {
 		struct resource *res;
 		struct resource *root;
+		struct resource *tmp;
 
 		res = &info->res[j];
 		pci_bus_add_resource(b, res, 0);
Index: linux-2.6/kernel/resource.c
===================================================================
--- linux-2.6.orig/kernel/resource.c
+++ linux-2.6/kernel/resource.c
@@ -451,7 +451,7 @@ static struct resource * __insert_resour
 		if (!first)
 			return first;
 
-		if (first == parent)
+		if (first == parent || first == new)
 			return first;
 
 		if ((first->start > new->start) || (first->end < new->end))
--
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