From: Christian Marangi ansuelsmth@gmail.com
[ Upstream commit 7028471edb646bfc532fec0973e50e784cdcb7c6 ]
Disable all queues and disconnect before tx_disable in stmmac_release to prevent a corner case where packet may be still queued at the same time tx_disable is called resulting in kernel panic if some packet still has to be processed.
Signed-off-by: Christian Marangi ansuelsmth@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 27b7bb64a028..46c2db220542 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3001,6 +3001,8 @@ static int stmmac_release(struct net_device *dev) for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) del_timer_sync(&priv->tx_queue[chan].txtimer);
+ netif_tx_disable(dev); + /* Free the IRQ lines */ free_irq(dev->irq, dev); if (priv->wol_irq != dev->irq)