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authorYinghai Lu <yhlu.kernel.send@gmail.com>2008-04-11 15:14:52 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-26 23:41:04 +0200
commit4cf19463745fad81ef2eed3e4e0038da5fd153f8 (patch)
tree8a840b0366a3d7a4881832efeeab06287fa55832 /arch/x86
parent6e184f299d696203bc40545b9db216089d88bef7 (diff)
x86_64: don't need set default res if only have one root bus
if there's only one root bus there's no need to split resources. This patch fixes the issue described at: http://lkml.org/lkml/2008/4/10/304 Reported-and-bisected-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/pci/k8-bus_64.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/pci/k8-bus_64.c b/arch/x86/pci/k8-bus_64.c
index 84b2030fc2f..4e64c58e17a 100644
--- a/arch/x86/pci/k8-bus_64.c
+++ b/arch/x86/pci/k8-bus_64.c
@@ -69,7 +69,8 @@ void set_pci_bus_resources_arch_default(struct pci_bus *b)
int j;
struct pci_root_info *info;
- if (!pci_root_num)
+ /* if only one root bus, don't need to anything */
+ if (pci_root_num < 2)
return;
for (i = 0; i < pci_root_num; i++) {