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PCI: endpoint: Fix a potential NULL pointer dereference 

In case alloc_workqueue() fails, return -ENOMEM to avoid
potential NULL pointer dereferences.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
[lorenzo.pieralisi@arm.com: commit log and code update]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This commit is contained in:
Kangjie Lu 2019-03-15 00:07:10 -05:00 committed by Lorenzo Pieralisi
parent 993d5fe31c
commit 507b820009
1 changed files with 5 additions and 0 deletions
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5
drivers/pci/endpoint/functions/pci-epf-test.c
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@ -591,6 +591,11 @@ static int __init pci_epf_test_init(void)
kpcitest_workqueue = alloc_workqueue("kpcitest",
WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
if (!kpcitest_workqueue) {
pr_err("Failed to allocate the kpcitest work queue\n");
return -ENOMEM;
}
ret = pci_epf_register_driver(&test_driver);
if (ret) {
pr_err("Failed to register pci epf test driver --> %d\n", ret);