6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
[ Upstream commit 6bba3c0ac5dc54737998a0982b2e272242c87e0f ]
There are two issues related to epf_ntb_epc_cleanup():
1) It should call epf_ntb_config_sspad_bar_clear()
2) The epf_ntb_bind() function should call epf_ntb_epc_cleanup()
to cleanup.
I also changed the ordering a bit. Unwinding should be done in the
mirror order from how they are allocated.
Fixes: e35f56bb0330 ("PCI: endpoint: Support NTB transfer between RC and EP")
Link: https://lore.kernel.org/linux-pci/aaffbe8d-7094-4083-8146-185f4a84e8a1@moroto.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@xxxxxxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/pci/endpoint/functions/pci-epf-vntb.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index 1a4cdf98df703..3368f483f818d 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -810,8 +810,9 @@ static int epf_ntb_epc_init(struct epf_ntb *ntb)
*/
static void epf_ntb_epc_cleanup(struct epf_ntb *ntb)
{
- epf_ntb_db_bar_clear(ntb);
epf_ntb_mw_bar_clear(ntb, ntb->num_mws);
+ epf_ntb_db_bar_clear(ntb);
+ epf_ntb_config_sspad_bar_clear(ntb);
}
#define EPF_NTB_R(_name) \
@@ -1351,7 +1352,7 @@ static int epf_ntb_bind(struct pci_epf *epf)
ret = pci_register_driver(&vntb_pci_driver);
if (ret) {
dev_err(dev, "failure register vntb pci driver\n");
- goto err_bar_alloc;
+ goto err_epc_cleanup;
}
ret = vpci_scan_bus(ntb);
@@ -1362,6 +1363,8 @@ static int epf_ntb_bind(struct pci_epf *epf)
err_unregister:
pci_unregister_driver(&vntb_pci_driver);
+err_epc_cleanup:
+ epf_ntb_epc_cleanup(ntb);
err_bar_alloc:
epf_ntb_config_spad_bar_free(ntb);
--
2.43.0
