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-rw-r--r--drivers/mcb/mcb-core.c19
-rw-r--r--include/linux/mcb.h5
2 files changed, 18 insertions, 6 deletions
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
index a4be451074e5..1e336cc56751 100644
--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -187,6 +187,7 @@ struct mcb_bus *mcb_alloc_bus(struct device *carrier)
{
struct mcb_bus *bus;
int bus_nr;
+ int rc;
bus = kzalloc(sizeof(struct mcb_bus), GFP_KERNEL);
if (!bus)
@@ -194,14 +195,26 @@ struct mcb_bus *mcb_alloc_bus(struct device *carrier)
bus_nr = ida_simple_get(&mcb_ida, 0, 0, GFP_KERNEL);
if (bus_nr < 0) {
- kfree(bus);
- return ERR_PTR(bus_nr);
+ rc = bus_nr;
+ goto err_free;
}
- INIT_LIST_HEAD(&bus->children);
bus->bus_nr = bus_nr;
bus->carrier = carrier;
+
+ device_initialize(&bus->dev);
+ bus->dev.parent = carrier;
+ bus->dev.bus = &mcb_bus_type;
+
+ dev_set_name(&bus->dev, "mcb:%d", bus_nr);
+ rc = device_add(&bus->dev);
+ if (rc)
+ goto err_free;
+
return bus;
+err_free:
+ kfree(bus);
+ return ERR_PTR(rc);
}
EXPORT_SYMBOL_GPL(mcb_alloc_bus);
diff --git a/include/linux/mcb.h b/include/linux/mcb.h
index ed06e15a36aa..3efafbca166d 100644
--- a/include/linux/mcb.h
+++ b/include/linux/mcb.h
@@ -21,13 +21,12 @@ struct mcb_device;
/**
* struct mcb_bus - MEN Chameleon Bus
*
- * @dev: pointer to carrier device
- * @children: the child busses
+ * @dev: bus device
+ * @carrier: pointer to carrier device
* @bus_nr: mcb bus number
* @get_irq: callback to get IRQ number
*/
struct mcb_bus {
- struct list_head children;
struct device dev;
struct device *carrier;
int bus_nr;