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habanalabs: unmap PCI bars upon iATU failure

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In case the driver fails to configure the PCI controller iATU, it needs to
unmap the PCI bars before exiting so if the driver is removed, the bars
won't be left mapped.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Ofir Bitton 2020-07-16 13:33:52 +03:00 committed by Oded Gabbay
parent 51072c0f5b
commit f1aae40e8d
1 changed files with 4 additions and 2 deletions
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6
drivers/misc/habanalabs/common/pci.c
View file

@ -369,15 +369,17 @@ int hl_pci_init(struct hl_device *hdev)
rc = hdev->asic_funcs->init_iatu(hdev);
if (rc) {
dev_err(hdev->dev, "Failed to initialize iATU\n");
goto disable_device;
goto unmap_pci_bars;
}
rc = hl_pci_set_dma_mask(hdev);
if (rc)
goto disable_device;
goto unmap_pci_bars;
return 0;
unmap_pci_bars:
hl_pci_bars_unmap(hdev);
disable_device:
pci_clear_master(pdev);
pci_disable_device(pdev);