Device Model: do better cleanup on device removal

- make sure driverfs directory is removed after driver is detached and platform is notified (since they might have added files to it)
- Add release callback to struct device that is to be set by whoever allocated the device (e.g. the bus). 
This is the last thing called from put_device, so the owner of it can free the memory for the structure

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 96d9cb108139..ccfd221d5dcd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -92,6 +92,8 @@ struct device {
 					   being off. */
 
 	unsigned char *saved_state;	/* saved device state */
+
+	void	(*release)(struct device * dev);
 };
 
 static inline struct device *