bna: off by one

The mod->mbhdlr[] array has BFI_MC_MAX elements.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bna/bfa_ioc.c b/drivers/net/bna/bfa_ioc.c
index caa45c2..73493de 100644
--- a/drivers/net/bna/bfa_ioc.c
+++ b/drivers/net/bna/bfa_ioc.c
@@ -1514,7 +1514,7 @@
 		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);