From 1b9fb31f7db7882d475bdc8b335403e8eaabf1ef Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Mon, 13 Jan 2014 11:29:23 +0100
Subject: [PATCH] usb: core: check for valid id_table when using the RefId
 feature

When implementing the RefId feature, it was missed that id_tables can be
NULL under special circumstances. Bail out in that case.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reading git-format-patch failed