From: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>
[ Upstream commit 948a66338f44c16f52c0f03f6ad81a6f59eb5604 ]
Two bugs exist in the code related to reset_task
in PF driver one is the missing protection
against network stack ndo_open and ndo_close.
Other one is the missing cancel_work.
This patch fixes those problems.
Fixes: 4ff7d1488a84 ("octeontx2-pf: Error handling support")
Signed-off-by: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>
Signed-off-by: Sunil Goutham <sgoutham@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index 64786568af0db..75a8c407e815c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -1730,10 +1730,12 @@ static void otx2_reset_task(struct work_struct *work)
if (!netif_running(pf->netdev))
return;
+ rtnl_lock();
otx2_stop(pf->netdev);
pf->reset_count++;
otx2_open(pf->netdev);
netif_trans_update(pf->netdev);
+ rtnl_unlock();
}
static const struct net_device_ops otx2_netdev_ops = {
@@ -2111,6 +2113,7 @@ static void otx2_remove(struct pci_dev *pdev)
pf = netdev_priv(netdev);
+ cancel_work_sync(&pf->reset_task);
/* Disable link notifications */
otx2_cgx_config_linkevents(pf, false);
--
2.25.1
