From: Alex Elder <elder@inktank.com>
Date: Wed, 16 May 2012 20:16:39 +0000 (-0500)
Subject: ceph: ensure auth ops are defined before use
X-Git-Tag: v3.5-rc1~36^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a255651d4cad89f1a606edd36135af892ada4f20;p=pandora-kernel.git

ceph: ensure auth ops are defined before use

In the create_authorizer method for both the mds and osd clients,
the auth_client->ops pointer is blindly dereferenced.  There is no
obvious guarantee that this pointer has been assigned.  And
furthermore, even if the ops pointer is non-null there is definitely
no guarantee that the create_authorizer or destroy_authorizer
methods are defined.

Add checks in both routines to make sure they are defined (non-null)
before use.  Add similar checks in a few other spots in these files
while we're at it.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---

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