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 <ecas...@coraid.com>
---
 drivers/block/aoe/aoeblk.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index d63dcf0..dd73e1f 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -215,7 +215,6 @@ aoedisk_add_debugfs(struct aoedev *d)
 void
 aoedisk_rm_debugfs(struct aoedev *d)
 {
-       BUG_ON(d->debugfs == NULL);
        debugfs_remove(d->debugfs);
        d->debugfs = NULL;
 }
-- 
1.7.1

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