nfsd4: return serverfault on request for ssv

We're refusing to support a mandatory features of 4.1, so serverfault
seems the better error; see e.g.:

	http://www.ietf.org/mail-archive/web/nfsv4/current/msg07638.html

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

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2d191293e6aa..9e7f8af12f8f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1344,7 +1344,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
         case SP4_NONE:
                 break;
         case SP4_SSV:
-                return nfserr_encr_alg_unsupp;
+                return nfserr_serverfault;
         default:
                 BUG();                          /* checked by xdr code */
         case SP4_MACH_CRED: