[PATCH net 05/20] can: ctucanfd: unmap BAR0 using base address

Marc Kleine-Budde <[email protected]> Wed, 29 Jul 2026 12:12:45 +0200
Newsgroups org.kernel.vger.linux-can,org.kernel.vger.netdev
Message-ID <[email protected]>
From: Avi Weiss <[email protected]>

BAR0 is mapped into bar0_base, while cra_addr points to an offset
within that mapping and is used for other purposes.

Pass bar0_base to pci_iounmap(), instead of cra_addr, on the probe error
path so the address returned by pci_iomap() is used for unmapping.

Fixes: 792a5b678e81 ("can: ctucanfd: CTU CAN FD open-source IP core - PCI bus support.")
Signed-off-by: Avi Weiss <[email protected]>
Acked-by: Pavel Pisa <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: [email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
---
 drivers/net/can/ctucanfd/ctucanfd_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/ctucanfd/ctucanfd_pci.c b/drivers/net/can/ctucanfd/ctucanfd_pci.c
index 625788fa8976..f845951c5d51 100644
--- a/drivers/net/can/ctucanfd/ctucanfd_pci.c
+++ b/drivers/net/can/ctucanfd/ctucanfd_pci.c
@@ -194,7 +194,7 @@ static int ctucan_pci_probe(struct pci_dev *pdev,
 	pci_set_drvdata(pdev, NULL);
 	kfree(bdata);
 err_pci_iounmap_bar0:
-	pci_iounmap(pdev, cra_addr);
+	pci_iounmap(pdev, bar0_base);
 err_pci_iounmap_bar1:
 	pci_iounmap(pdev, addr);
 err_release_regions:
-- 
2.53.0