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| author | Xiongfeng Wang <wangxiongfeng2@huawei.com> | 2020-11-19 13:49:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-09 19:43:44 +0100 |
| commit | 1749c90489f2afa6b59dbf3ab59d58a9014c84a1 (patch) | |
| tree | fa85157fbd079957627b3d26c2aa834f5d33c85a /drivers/misc | |
| parent | misc: genwqe: Use dma_set_mask_and_coherent to simplify code (diff) | |
| download | linux-1749c90489f2afa6b59dbf3ab59d58a9014c84a1.tar.xz linux-1749c90489f2afa6b59dbf3ab59d58a9014c84a1.zip | |
misc: pci_endpoint_test: fix return value of error branch
We return 'err' in the error branch, but this variable may be set as
zero before. Fix it by setting 'err' as a negative value before we
goto the error label.
Fixes: e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/1605790158-6780-1-git-send-email-wangxiongfeng2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/pci_endpoint_test.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index ea9c2c085298..eff481ce08ee 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -811,8 +811,10 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, pci_set_master(pdev); - if (!pci_endpoint_test_alloc_irq_vectors(test, irq_type)) + if (!pci_endpoint_test_alloc_irq_vectors(test, irq_type)) { + err = -EINVAL; goto err_disable_irq; + } for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) { @@ -849,8 +851,10 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, goto err_ida_remove; } - if (!pci_endpoint_test_request_irq(test)) + if (!pci_endpoint_test_request_irq(test)) { + err = -EINVAL; goto err_kfree_test_name; + } misc_device = &test->miscdev; misc_device->minor = MISC_DYNAMIC_MINOR; |