diff mbox series

[5.8,011/186] habanalabs: unmap PCI bars upon iATU failure

Message ID 20200908152242.199967391@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Sept. 8, 2020, 3:22 p.m. UTC 
From: Ofir Bitton <obitton@habana.ai>

[ Upstream commit f1aae40e8dbd2655e3b10cae381a1e8292b19d57 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/habanalabs/pci.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/misc/habanalabs/pci.c b/drivers/misc/habanalabs/pci.c
index 9f634ef6f5b37..77022c0b42027 100644
--- a/drivers/misc/habanalabs/pci.c
+++ b/drivers/misc/habanalabs/pci.c
@@ -378,15 +378,17 @@  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);