scsi: megaraid: silence a static checker bug
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 3 May 2018 10:54:32 +0000 (13:54 +0300)
committerMartin K. Petersen <martin.petersen@oracle.com>
Tue, 8 May 2018 05:29:00 +0000 (01:29 -0400)
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>
drivers/scsi/megaraid.c

index 7195cff..9b6f5d0 100644 (file)
@@ -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);