From fea1b139735355fe17a66f63811c58698ff03ec5 Mon Sep 17 00:00:00 2001
From: Ed Cashin <ecashin@coraid.com>
Date: Wed, 11 Sep 2013 14:25:46 -0700
Subject: [PATCH] aoe: do not BUG if memory pressure prevented debugfs file
 creation

If the system has trouble allocating memory for the creation of the aoe
debugfs directory or of a file inside it, the debugfs member of an aoedev
can be NULL.

Do not treat a NULL debugfs pointer as a BUG on aoedev shutdown, avoiding
the user impact of an unecessary panic.

Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Reading git-format-patch failed