bna: off by one

The mod->mbhdlr[] array has BFI_MC_MAX elements.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bna/bfa_ioc.c

@@ -1514,7 +1514,7 @@ bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
 		return;
 	}
 
-	if ((mc > BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
+	if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
 		return;
 
 	mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);