From: Abhishek Kulkarni <adkulkar@umail.iu.edu>
Date: Mon, 17 Aug 2009 21:38:45 +0000 (-0500)
Subject: net/9p: insulate the client against an invalid error code sent by a 9p server
X-Git-Tag: v2.6.31-rc8~6^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0aad37ef3deed118d3816e1d1a600eb2ec9dcb87;p=pandora-kernel.git

net/9p: insulate the client against an invalid error code sent by a 9p server

A looney tunes server sending an invalid error code (which is !IS_ERR_VALUE)
can result in a client oops. So fix it by adding a check and converting unknown
or invalid error codes to -ESERVERFAULT.

Signed-off-by: Abhishek Kulkarni <adkulkar@umail.iu.edu>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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