[PATCH] driver core: add helper device_is_registered()

add the helper and use it instead of open coding the klist_node_attached() check
(which is a layering violation IMHO)

idea by Alan Stern.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index c47c8052b48..f1fb67fe22a 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -987,7 +987,7 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
 
                         /* remove this interface if it has been registered */
                         interface = dev->actconfig->interface[i];
-                        if (!klist_node_attached(&interface->dev.knode_bus))
+                        if (!device_is_registered(&interface->dev))
                                 continue;
                         dev_dbg (&dev->dev, "unregistering interface %s\n",
                                 interface->dev.bus_id);