When we hot plug pci devices, system will allocate resources to these new add
devices, pci_bus_assign_resources() will be called.If the pci devices was assigned
resource fail, the resource struct will reset to zero.So I think use res->flags here
to determine whether the resource is valid is reliable.
Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
---
drivers/pci/hotplug/acpiphp_glue.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 7bbd6bf..2161902 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -1084,13 +1084,11 @@ static void acpiphp_sanitize_bus(struct pci_bus *bus)
{
struct pci_dev *dev, *tmp;
int i;
- unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM;
list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
for (i=0; i<PCI_BRIDGE_RESOURCES; i++) {
struct resource *res = &dev->resource[i];
- if ((res->flags & type_mask) && !res->start &&
- res->end) {
+ if (!res->flags) {
/* Could not assign a required resources
* for this device, remove it */
pci_stop_and_remove_bus_device(dev);
--
1.7.1
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