From: Jeff Layton <jlayton@redhat.com>
Date: Sat, 4 Jan 2014 12:18:04 +0000 (-0500)
Subject: sunrpc: fix potential race between setting use_gss_proxy and the upcall rpc_clnt
X-Git-Tag: v3.14-rc1~44^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a92e5eb1103341e985a575e48e26f87fbb9b1679;p=pandora-kernel.git

sunrpc: fix potential race between setting use_gss_proxy and the upcall rpc_clnt

An nfsd thread can call use_gss_proxy and find it set to '1' but find
gssp_clnt still NULL, so that when it attempts the upcall the result
will be an unnecessary -EIO.

So, ensure that gssp_clnt is created first, and set the use_gss_proxy
variable only if that succeeds.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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