From: Rajesh Shah <rajesh.shah@intel.com>
When hot-plugging an I/O hierarchy that contains many bridges and leaf
devices, it's possible that there are not enough resources to start all the
device present. If we fail to assign a resource, clear the corresponding
value in the pci_dev structure, so other code can take corrective action.
Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/drivers/pci/setup-bus.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
diff -puN drivers/pci/setup-bus.c~acpi-bridge-hotadd-remove-hot-plugged-devices-that-could-not-be-allocated-resources drivers/pci/setup-bus.c
--- 25/drivers/pci/setup-bus.c~acpi-bridge-hotadd-remove-hot-plugged-devices-that-could-not-be-allocated-resources 2005-03-18 15:38:57.000000000 -0800
+++ 25-akpm/drivers/pci/setup-bus.c 2005-03-18 15:38:57.000000000 -0800
@@ -72,7 +72,10 @@ pbus_assign_resources_sorted(struct pci_
for (list = head.next; list;) {
res = list->res;
idx = res - &list->dev->resource[0];
- pci_assign_resource(list->dev, idx);
+ if (pci_assign_resource(list->dev, idx)) {
+ res->start = 0;
+ res->flags = 0;
+ }
tmp = list;
list = list->next;
kfree(tmp);
_