greybus: FIXME/XXX removals: We have proper reference counting now

Now that we have proper reference counting for modules, interfaces, and
connections, no need to worry about grabbing a pointer to your "parent"
structure, all is good.
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/battery-gb.c

@@ -369,7 +369,7 @@ int gb_battery_device_init(struct gb_connection *connection)
 	if (!gb)
 		return -ENOMEM;
 
-	gb->connection = connection;	// FIXME refcount!
+	gb->connection = connection;
 	connection->private = gb;
 
 	/* Check the version */

drivers/staging/greybus/connection.c

@@ -179,7 +179,7 @@ struct gb_connection *gb_connection_create(struct gb_interface *interface,
 		return NULL;
 	}
 
-	connection->interface = interface;	/* XXX refcount? */
+	connection->interface = interface;
 	connection->interface_cport_id = cport_id;
 	connection->protocol = protocol;
 	connection->state = GB_CONNECTION_STATE_DISABLED;

drivers/staging/greybus/interface.c

@@ -61,7 +61,7 @@ gb_interface_create(struct gb_module *gmod, u8 interface_id)
 	if (!interface)
 		return NULL;
 
-	interface->gmod = gmod;		/* XXX refcount? */
+	interface->gmod = gmod;
 	interface->id = interface_id;
 	interface->device_id = 0xff;	/* Invalid device id to start with */
 	INIT_LIST_HEAD(&interface->connections);

drivers/staging/greybus/operation.c

@@ -349,7 +349,7 @@ struct gb_operation *gb_operation_create(struct gb_connection *connection,
 	operation = kmem_cache_zalloc(gb_operation_cache, gfp_flags);
 	if (!operation)
 		return NULL;
-	operation->connection = connection;		/* XXX refcount? */
+	operation->connection = connection;
 
 	operation->request = gb_operation_gbuf_create(operation, type,
 							request_size,