[PATCH v3 3/5] Docs: usb: update comment and code of function skel_delete

[Philipp Hortmann <philipp.g.hortmann@gmail.com>]

Update code according to usb-skeleton.c

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
---
V1 -> V2: Corrected format of function name to skel_delete()
V2 -> V3: Moved correction of the function name to an own patch in this
          patch series
---
 .../driver-api/usb/writing_usb_driver.rst        | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/driver-api/usb/writing_usb_driver.rst b/Documentation/driver-api/usb/writing_usb_driver.rst
index c336dfd82426..6c487ac5eab2 100644
--- a/Documentation/driver-api/usb/writing_usb_driver.rst
+++ b/Documentation/driver-api/usb/writing_usb_driver.rst
@@ -266,15 +266,15 @@ notify the user-space programs that the device is no longer there. The
 following code (function ``skel_delete``) is an example of how to do
 this::
 
-    static inline void skel_delete (struct usb_skel *dev)
+    static void skel_delete(struct kref *kref)
     {
-	kfree (dev->bulk_in_buffer);
-	if (dev->bulk_out_buffer != NULL)
-	    usb_free_coherent (dev->udev, dev->bulk_out_size,
-		dev->bulk_out_buffer,
-		dev->write_urb->transfer_dma);
-	usb_free_urb (dev->write_urb);
-	kfree (dev);
+	struct usb_skel *dev = to_skel_dev(kref);
+
+	usb_free_urb(dev->bulk_in_urb);
+	usb_put_intf(dev->interface);
+	usb_put_dev(dev->udev);
+	kfree(dev->bulk_in_buffer);
+	kfree(dev);
     }
 
 
-- 
2.25.1