1 files changed, 32 insertions, 2 deletions

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 17e96698410e..03204bfd17af 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -568,6 +568,36 @@ static void bus_remove_attrs(struct bus_type * bus)
 	}
 }
 
+static void klist_devices_get(struct klist_node *n)
+{
+	struct device *dev = container_of(n, struct device, knode_bus);
+
+	get_device(dev);
+}
+
+static void klist_devices_put(struct klist_node *n)
+{
+	struct device *dev = container_of(n, struct device, knode_bus);
+
+	put_device(dev);
+}
+
+static void klist_drivers_get(struct klist_node *n)
+{
+	struct device_driver *drv = container_of(n, struct device_driver,
+						 knode_bus);
+
+	get_driver(drv);
+}
+
+static void klist_drivers_put(struct klist_node *n)
+{
+	struct device_driver *drv = container_of(n, struct device_driver,
+						 knode_bus);
+
+	put_driver(drv);
+}
+
 /**
  *	bus_register - register a bus with the system.
  *	@bus:	bus.
@@ -602,8 +632,8 @@ int bus_register(struct bus_type * bus)
 	if (retval)
 		goto bus_drivers_fail;
 
-	klist_init(&bus->klist_devices);
-	klist_init(&bus->klist_drivers);
+	klist_init(&bus->klist_devices, klist_devices_get, klist_devices_put);
+	klist_init(&bus->klist_drivers, klist_drivers_get, klist_drivers_put);
 	bus_add_attrs(bus);
 
 	pr_debug("bus type '%s' registered\n", bus->name);