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authorNilesh Javali <nilesh.javali@cavium.com>2018-09-27 05:15:35 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2018-09-28 02:28:05 -0400
commit3cc5746e5ad7688e274e193fa71278d98aa52759 (patch)
tree1bce3b1d8a07d8253908d3ca0b0750fda5e347ef /drivers/scsi
parentf1f1fadacaf08b7cf11714c0c29f8fa4d4ef68a9 (diff)
downloadlinux-3cc5746e5ad7688e274e193fa71278d98aa52759.tar.bz2
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.c1
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, &params);