From: Neil Brown <neilb@suse.de>
Date: Thu, 16 Oct 2008 03:15:16 +0000 (+1100)
Subject: Make nfs_file_cred more robust.
X-Git-Tag: v2.6.28-rc1~96^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=504e518953a330c8d44a95bdd65a5c9f50f1012e;p=pandora-kernel.git

Make nfs_file_cred more robust.

As not all files have an associated open_context (e.g. device special
files), it is safest to test for the existence of the open context
before de-referencing it.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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