[PATCH] driver core: handle bus_attach_device() failure

[akinobu.mita@gmail.com (Akinobu Mita)]

This patch handles bus_attach_device() failure in device_add().

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>

 drivers/base/core.c |   22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

Index: 2.6-mm/drivers/base/core.c
===================================================================
--- 2.6-mm.orig/drivers/base/core.c	2006-10-03 22:58:40.000000000 +0900
+++ 2.6-mm/drivers/base/core.c	2006-10-09 16:57:52.000000000 +0900
@@ -530,7 +530,9 @@ int device_add(struct device *dev)
 	if ((error = bus_add_device(dev)))
 		goto BusError;
 	kobject_uevent(&dev->kobj, KOBJ_ADD);
-	bus_attach_device(dev);
+	if ((error = bus_attach_device(dev)))
+		goto BusAttachError;
+
 	if (parent)
 		klist_add_tail(&dev->knode_parent, &parent->klist_children);
 
@@ -548,6 +550,8 @@ int device_add(struct device *dev)
  Done:
 	put_device(dev);
 	return error;
+ BusAttachError:
+	bus_remove_device(dev);
  BusError:
 	device_pm_remove(dev);
  PMError: