diff options
| author |   Nilesh Javali <nilesh.javali@cavium.com> | 2018-09-27 05:15:35 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-09-28 02:28:05 -0400 |
| commit | 3cc5746e5ad7688e274e193fa71278d98aa52759 (patch) | |
| tree | 1bce3b1d8a07d8253908d3ca0b0750fda5e347ef /drivers/scsi | |
| parent | scsi: sd: don't crash the host on invalid commands (diff) | |
| download | linux-dev-3cc5746e5ad7688e274e193fa71278d98aa52759.tar.xz linux-dev-3cc5746e5ad7688e274e193fa71278d98aa52759.zip | |
scsi: qedi: Initialize the stats mutex lock
Fix kernel NULL pointer dereference,
Call Trace:
[<ffffffff9b7658e6>] __mutex_lock_slowpath+0xa6/0x1d0
[<ffffffff9b764cef>] mutex_lock+0x1f/0x2f
[<ffffffffc061b5e1>] qedi_get_protocol_tlv_data+0x61/0x450 [qedi]
[<ffffffff9b1f9d8e>] ? map_vm_area+0x2e/0x40
[<ffffffff9b1fc370>] ? __vmalloc_node_range+0x170/0x280
[<ffffffffc0b81c3d>] ? qed_mfw_process_tlv_req+0x27d/0xbd0 [qed]
[<ffffffffc0b6461b>] qed_mfw_fill_tlv_data+0x4b/0xb0 [qed]
[<ffffffffc0b81c59>] qed_mfw_process_tlv_req+0x299/0xbd0 [qed]
[<ffffffff9b02a59e>] ? __switch_to+0xce/0x580
[<ffffffffc0b61e5b>] qed_slowpath_task+0x5b/0x80 [qed]
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/qedi/qedi_main.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index cc8e64dc65ad..e5bd035ebad0 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2472,6 +2472,7 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) /* start qedi context */ spin_lock_init(&qedi->hba_lock); spin_lock_init(&qedi->task_idx_lock); + mutex_init(&qedi->stats_lock); } qedi_ops->ll2->register_cb_ops(qedi->cdev, &qedi_ll2_cb_ops, qedi); qedi_ops->ll2->start(qedi->cdev, ¶ms); |