diff options
Diffstat (limited to 'drivers/misc/pci_endpoint_test.c')
| -rw-r--r-- | drivers/misc/pci_endpoint_test.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index 9849bf183299..230f1e8538dc 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -92,6 +92,7 @@ struct pci_endpoint_test { void __iomem *bar[6]; struct completion irq_raised; int last_irq; + int num_irqs; /* mutex to protect the ioctls */ struct mutex mutex; struct miscdevice miscdev; @@ -226,6 +227,9 @@ static bool pci_endpoint_test_copy(struct pci_endpoint_test *test, size_t size) u32 src_crc32; u32 dst_crc32; + if (size > SIZE_MAX - alignment) + goto err; + orig_src_addr = dma_alloc_coherent(dev, size + alignment, &orig_src_phys_addr, GFP_KERNEL); if (!orig_src_addr) { @@ -311,6 +315,9 @@ static bool pci_endpoint_test_write(struct pci_endpoint_test *test, size_t size) size_t alignment = test->alignment; u32 crc32; + if (size > SIZE_MAX - alignment) + goto err; + orig_addr = dma_alloc_coherent(dev, size + alignment, &orig_phys_addr, GFP_KERNEL); if (!orig_addr) { @@ -369,6 +376,9 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test, size_t size) size_t alignment = test->alignment; u32 crc32; + if (size > SIZE_MAX - alignment) + goto err; + orig_addr = dma_alloc_coherent(dev, size + alignment, &orig_phys_addr, GFP_KERNEL); if (!orig_addr) { @@ -505,6 +515,7 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, irq = pci_alloc_irq_vectors(pdev, 1, 32, PCI_IRQ_MSI); if (irq < 0) dev_err(dev, "failed to get MSI interrupts\n"); + test->num_irqs = irq; } err = devm_request_irq(dev, pdev->irq, pci_endpoint_test_irqhandler, @@ -572,6 +583,9 @@ err_iounmap: pci_iounmap(pdev, test->bar[bar]); } + for (i = 0; i < irq; i++) + devm_free_irq(dev, pdev->irq + i, test); + err_disable_msi: pci_disable_msi(pdev); pci_release_regions(pdev); @@ -585,6 +599,7 @@ err_disable_pdev: static void pci_endpoint_test_remove(struct pci_dev *pdev) { int id; + int i; enum pci_barno bar; struct pci_endpoint_test *test = pci_get_drvdata(pdev); struct miscdevice *misc_device = &test->miscdev; @@ -600,6 +615,8 @@ static void pci_endpoint_test_remove(struct pci_dev *pdev) if (test->bar[bar]) pci_iounmap(pdev, test->bar[bar]); } + for (i = 0; i < test->num_irqs; i++) + devm_free_irq(&pdev->dev, pdev->irq + i, test); pci_disable_msi(pdev); pci_release_regions(pdev); pci_disable_device(pdev); |