From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Date: Mon, 29 Dec 2014 13:00:19 +0000 (+0200)
Subject: 9p: do not crash on unknown lock status code
X-Git-Tag: omap-for-v4.1/fixes-rc1~94^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b642f7269bd40ae9abe9cff01581b2eb5e2c2287;p=pandora-kernel.git

9p: do not crash on unknown lock status code

Current 9p implementation will crash whole system if sees unknown lock
status code. It's trivial target for DOS: 9p server can produce such
code easily.

Let's fallback more gracefully: warning in dmesg + -ENOLCK.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
---

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