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net: thunder: fix a potential NULL pointer dereference

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In case alloc_ordered_workqueue fails, the fix reports the error
and returns -ENOMEM.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kangjie Lu 2019-03-11 01:05:41 -05:00 committed by David S. Miller
parent 41af8b3a09
commit 0b31d98d90
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/cavium/thunder/nicvf_main.c
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@ -2234,6 +2234,12 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
nic->nicvf_rx_mode_wq = alloc_ordered_workqueue("nicvf_rx_mode_wq_VF%d",
WQ_MEM_RECLAIM,
nic->vf_id);
if (!nic->nicvf_rx_mode_wq) {
err = -ENOMEM;
dev_err(dev, "Failed to allocate work queue\n");
goto err_unregister_interrupts;
}
INIT_WORK(&nic->rx_mode_work.work, nicvf_set_rx_mode_task);
spin_lock_init(&nic->rx_mode_wq_lock);
mutex_init(&nic->rx_mode_mtx);