From 13e4e358b94c2c07257a6b50170af93681ae10eb Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 3 May 2018 13:54:32 +0300
Subject: [PATCH] scsi: megaraid: silence a static checker bug

[ Upstream commit 27e833dabab74ee665e487e291c9afc6d71effba ]

If we had more than 32 megaraid cards then it would cause memory
corruption.  That's not likely, of course, but it's handy to enforce it
and make the static checker happy.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/megaraid.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 7195cff51d4c..9b6f5d024dba 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -4199,6 +4199,9 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	int irq, i, j;
 	int error = -ENODEV;
 
+	if (hba_count >= MAX_CONTROLLERS)
+		goto out;
+
 	if (pci_enable_device(pdev))
 		goto out;
 	pci_set_master(pdev);