diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/ioat_dma.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index 879f4a06e3ca..9012da7908f5 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -1659,6 +1659,13 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev, " %d channels, device version 0x%02x, driver version %s\n", device->common.chancnt, device->version, IOAT_DMA_VERSION); + if (!device->common.chancnt) { + dev_err(&device->pdev->dev, + "Intel(R) I/OAT DMA Engine problem found: " + "zero channels detected\n"); + goto err_setup_interrupts; + } + err = ioat_dma_setup_interrupts(device); if (err) goto err_setup_interrupts; |