[PATCH 4.1 26/84] usb: udc: core: add device_del() call to error pathway

4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

commit c93e64e91248becd0edb8f01723dff9da890e2ab upstream.

This patch fixes a bug in the error pathway of
usb_add_gadget_udc_release() in udc-core.c.  If the udc registration
fails, the gadget registration is not fully undone; there's a
put_device(&gadget->dev) call but no device_del().

Acked-by: Peter Chen <redacted>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/gadget/udc/udc-core.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c

@@ -321,6 +321,7 @@ err4:
 
 err3:
 	put_device(&udc->dev);
+	device_del(&gadget->dev);
 
 err2:
 	put_device(&gadget->dev);