[PATCH 5.10 052/103] atlantic: Fix issue in the pm resume flow.

From: Greg Kroah-Hartman
Date: Mon Sep 27 2021 - 13:15:43 EST


From: Sudarsana Reddy Kalluru <skalluru@xxxxxxxxxxx>

[ Upstream commit 4d88c339c423eefe2fd48215016cb0c75fcb4c4d ]

After fixing hibernation resume flow, another usecase was found which
should be explicitly handled - resume when device is in "down" state.
Invoke aq_nic_init jointly with aq_nic_start only if ndev was already
up during suspend/hibernate. We still need to perform nic_deinit() if
caller requests for it, to handle the freeze/resume scenarios.

Fixes: 57f780f1c433 ("atlantic: Fix driver resume flow.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@xxxxxxxxxxx>
Signed-off-by: Igor Russkikh <irusskikh@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
index f26d03735619..5b996330f228 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
@@ -419,13 +419,13 @@ static int atl_resume_common(struct device *dev, bool deep)
if (deep) {
/* Reinitialize Nic/Vecs objects */
aq_nic_deinit(nic, !nic->aq_hw->aq_nic_cfg->wol);
+ }

+ if (netif_running(nic->ndev)) {
ret = aq_nic_init(nic);
if (ret)
goto err_exit;
- }

- if (netif_running(nic->ndev)) {
ret = aq_nic_start(nic);
if (ret)
goto err_exit;
--
2.33.0