NFS: Remove an unneeded check in decode_compound_header_arg()

Clean up:  The header tag length is unsigned, so checking that it is less
than zero is unnecessary.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 058ade7efe79..97abd829e432 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -139,7 +139,7 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
         if (unlikely(status != 0))
                 return status;
         /* We do not like overly long tags! */
-        if (hdr->taglen > CB_OP_TAGLEN_MAXSZ-12 || hdr->taglen < 0) {
+        if (hdr->taglen > CB_OP_TAGLEN_MAXSZ - 12) {
                 printk("NFSv4 CALLBACK %s: client sent tag of length %u\n",
                                 __FUNCTION__, hdr->taglen);
                 return htonl(NFS4ERR_RESOURCE);