[SCSI] bfa: off by one in bfa_ioc_mbox_isr()

If mc == BFI_MC_MAX then we're reading past the end of the
mod->mbhdlr[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 14e6284..8cdb79c 100644 (file)
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -2357,7 +2357,7 @@ bfa_ioc_mbox_isr(struct bfa_ioc_s *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);