[PATCH] net: liquidio: fix BAR resource leak on PF number failure

[Haoxiang Li]

If cn23xx_get_pf_num() fails, the function returns without
unmapping either BAR. Unmap both BARs before returning from
the error path.

Fixes: 0c45d7fe12c7 ("liquidio: fix use of pf in pass-through mode in a virtual machine")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
---
 drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c b/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
index 75f22f74774c..a1548ca81ecd 100644
--- a/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
+++ b/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
@@ -1167,8 +1167,11 @@ int setup_cn23xx_octeon_pf_device(struct octeon_device *oct)
 		return 1;
 	}
 
-	if (cn23xx_get_pf_num(oct) != 0)
+	if (cn23xx_get_pf_num(oct) != 0) {
+		octeon_unmap_pci_barx(oct, 0);
+		octeon_unmap_pci_barx(oct, 1);
 		return 1;
+	}
 
 	if (cn23xx_sriov_config(oct)) {
 		octeon_unmap_pci_barx(oct, 0);
-- 
2.25.1