diff options
| -rw-r--r-- | fs/nfs/callback_xdr.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c index 56a3cc51010..537f21da6e5 100644 --- a/fs/nfs/callback_xdr.c +++ b/fs/nfs/callback_xdr.c @@ -521,6 +521,14 @@ out: static __be32 preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op) { + if (op_nr == OP_CB_SEQUENCE) { + if (nop != 0) + return htonl(NFS4ERR_SEQUENCE_POS); + } else { + if (nop == 0) + return htonl(NFS4ERR_OP_NOT_IN_SESSION); + } + switch (op_nr) { case OP_CB_GETATTR: case OP_CB_RECALL: |