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| author | Kangjie Lu <kjlu@umn.edu> | 2019-03-15 00:07:10 -0500 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2019-04-12 15:25:09 +0100 |
| commit | 507b820009a457afa78202da337bcb56791fbb12 (patch) | |
| tree | ed0f356548774d64cb02a87e53263891ec6662b7 /drivers/pci/endpoint | |
| parent | 993d5fe31c7b7cf7f480c6b4bec3ed23a3a24690 (diff) | |
| download | linux-0-day-507b820009a457afa78202da337bcb56791fbb12.tar.gz linux-0-day-507b820009a457afa78202da337bcb56791fbb12.tar.xz | |
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>
Diffstat (limited to 'drivers/pci/endpoint')
| -rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-test.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index d0b91da49bf4a..ed5cd28b95725 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -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); |