NFSv4: handle no acl attr

 Stop handing garbage to userspace in the case where a weird server clears the
 acl bit in the getattr return (despite the fact that they've already claimed
 acl support.)

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index c5c7523..cd76264 100644 (file)
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3255,7 +3255,8 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
                if (attrlen <= *acl_len)
                        xdr_read_pages(xdr, attrlen);
                *acl_len = attrlen;
-       }
+       } else
+               status = -EOPNOTSUPP;
 
 out:
        return status;