projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| 722b7c48 GKH |
1 | From foo@baz Sat Jul 28 10:14:30 CEST 2018 |
| 2 | From: Dan Carpenter <dan.carpenter@oracle.com> | |
| 3 | Date: Thu, 3 May 2018 13:54:32 +0300 | |
| 4 | Subject: scsi: megaraid: silence a static checker bug | |
| 5 | ||
| 6 | From: Dan Carpenter <dan.carpenter@oracle.com> | |
| 7 | ||
| 8 | [ Upstream commit 27e833dabab74ee665e487e291c9afc6d71effba ] | |
| 9 | ||
| 10 | If we had more than 32 megaraid cards then it would cause memory | |
| 11 | corruption. That's not likely, of course, but it's handy to enforce it | |
| 12 | and make the static checker happy. | |
| 13 | ||
| 14 | Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> | |
| 15 | Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> | |
| 16 | Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> | |
| 17 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| 18 | --- | |
| 19 | drivers/scsi/megaraid.c | 3 +++ | |
| 20 | 1 file changed, 3 insertions(+) | |
| 21 | ||
| 22 | --- a/drivers/scsi/megaraid.c | |
| 23 | +++ b/drivers/scsi/megaraid.c | |
| 24 | @@ -4199,6 +4199,9 @@ megaraid_probe_one(struct pci_dev *pdev, | |
| 25 | int irq, i, j; | |
| 26 | int error = -ENODEV; | |
| 27 | ||
| 28 | + if (hba_count >= MAX_CONTROLLERS) | |
| 29 | + goto out; | |
| 30 | + | |
| 31 | if (pci_enable_device(pdev)) | |
| 32 | goto out; | |
| 33 | pci_set_master(pdev); |