CIFS: Move protocol specific tcon/tdis code to ops struct

and rename variables around the code changes.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 915b8fc..98fc454 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -694,7 +694,7 @@
 }
 
 int
-CIFSSMBTDis(const int xid, struct cifs_tcon *tcon)
+CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon)
 {
 	struct smb_hdr *smb_buffer;
 	int rc = 0;