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path: root/drivers/dma
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-rw-r--r--drivers/dma/ioat_dma.c7
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;