From 3e67dee2f6ae7096802a49a16c79fc6adda3a540 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Wed, 19 Mar 2014 00:07:05 +0100
Subject: [PATCH] staging/xillybus: Handle OOM in xillybus_init()

alloc_workqueue() can fail and returns NULL in case of
OOM.
Handle this case and undo class_create().

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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