[14/90] NFSv4.1: fix backchannel slotid off-by-one bug

[Greg KH]

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Adamson <andros@xxxxxxxxxx>

commit 61f2e5106582d02f30b6807e3f9c07463c572ccb upstream.

Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 fs/nfs/callback_proc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -324,7 +324,7 @@ validate_seqid(struct nfs4_slot_table *t
 	dprintk("%s enter. slotid %d seqid %d\n",
 		__func__, args->csa_slotid, args->csa_sequenceid);
 
-	if (args->csa_slotid > NFS41_BC_MAX_CALLBACKS)
+	if (args->csa_slotid >= NFS41_BC_MAX_CALLBACKS)
 		return htonl(NFS4ERR_BADSLOT);
 
 	slot = tbl->slots + args->csa_slotid;


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