xen/pcifront: avoid pci_frontend_enable_msix() falsely returning success

[pandora-kernel.git] / drivers / pci / bus.c

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 1e2ad92..398f5d8 100644 (file)
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -18,6 +18,32 @@
 
 #include "pci.h"
 
+void pci_add_resource(struct list_head *resources, struct resource *res)
+{
+       struct pci_bus_resource *bus_res;
+
+       bus_res = kzalloc(sizeof(struct pci_bus_resource), GFP_KERNEL);
+       if (!bus_res) {
+               printk(KERN_ERR "PCI: can't add bus resource %pR\n", res);
+               return;
+       }
+
+       bus_res->res = res;
+       list_add_tail(&bus_res->list, resources);
+}
+EXPORT_SYMBOL(pci_add_resource);
+
+void pci_free_resource_list(struct list_head *resources)
+{
+       struct pci_bus_resource *bus_res, *tmp;
+
+       list_for_each_entry_safe(bus_res, tmp, resources, list) {
+               list_del(&bus_res->list);
+               kfree(bus_res);
+       }
+}
+EXPORT_SYMBOL(pci_free_resource_list);
+
 void pci_bus_add_resource(struct pci_bus *bus, struct resource *res,
                          unsigned int flags)
 {
@@ -52,16 +78,12 @@ EXPORT_SYMBOL_GPL(pci_bus_resource_n);
 
 void pci_bus_remove_resources(struct pci_bus *bus)
 {
-       struct pci_bus_resource *bus_res, *tmp;
        int i;
 
        for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++)
                bus->resource[i] = NULL;
 
-       list_for_each_entry_safe(bus_res, tmp, &bus->resources, list) {
-               list_del(&bus_res->list);
-               kfree(bus_res);
-       }
+       pci_free_resource_list(&bus->resources);
 }
 
 /**