From 7b63c5772fd6eea71b1332570812297e45403126 Mon Sep 17 00:00:00 2001
From: Devendra Naga <devendra.aaru@gmail.com>
Date: Tue, 22 Jan 2013 03:38:17 -0500
Subject: [PATCH] staging: dgrp: check for a valid proc dir entry pointer

while proc_create fails, the register_proc_table can do a derefernce of the
null pointer causing to oops the system, instead check for a valid pointer
at register and unregister

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reading git-format-patch failed