[PATCH 5.13 249/300] atlantic: Fix driver resume flow.

Greg Kroah-Hartman
2021-09-13T14:16:49Z

From: Sudarsana Reddy Kalluru <skalluru@marvell.com>

[ Upstream commit 57f780f1c43362b86fd23d20bd940e2468237716 ]

Driver crashes when restoring from the Hibernate. In the resume flow,
driver need to clean up the older nic/vec objects and re-initialize them.

Fixes: 8aaa112a57c1d ("net: atlantic: refactoring pm logic")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
index 59253846e885..f26d03735619 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
@@ -417,6 +417,9 @@ static int atl_resume_common(struct device *dev, bool deep)
pci_restore_state(pdev);

if (deep) {
+ /* Reinitialize Nic/Vecs objects */
+ aq_nic_deinit(nic, !nic->aq_hw->aq_nic_cfg->wol);
+
ret = aq_nic_init(nic);
if (ret)
goto err_exit;
--
2.30.2