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net: qlge: fix a potential NULL pointer dereference

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In case alloc_ordered_workqueue fails, the fix returns
-ENOMEM to avoid NULL pointer dereference.

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 01:53:15 -05:00 • committed by David S. Miller
commit 4280b73092
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/qlogic/qlge/qlge_main.c
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@ -4681,6 +4681,11 @@ static int ql_init_device(struct pci_dev *pdev, struct net_device *ndev,
*/
qdev->workqueue = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM,
ndev->name);
if (!qdev->workqueue) {
err = -ENOMEM;
goto err_out2;
}
INIT_DELAYED_WORK(&qdev->asic_reset_work, ql_asic_reset_work);
INIT_DELAYED_WORK(&qdev->mpi_reset_work, ql_mpi_reset_work);
INIT_DELAYED_WORK(&qdev->mpi_work, ql_mpi_work);