From: Christian Marangi <ansuelsmth@xxxxxxxxx> [ 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@xxxxxxxxx> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 3a6283cf8fd4..f53a0588fefb 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3817,8 +3817,6 @@ static int stmmac_release(struct net_device *dev) struct stmmac_priv *priv = netdev_priv(dev); u32 chan; - netif_tx_disable(dev); - if (device_may_wakeup(priv->device)) phylink_speed_down(priv->phylink, false); /* Stop and disconnect the PHY */ @@ -3830,6 +3828,8 @@ static int stmmac_release(struct net_device *dev) for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) hrtimer_cancel(&priv->tx_queue[chan].txtimer); + netif_tx_disable(dev); + /* Free the IRQ lines */ stmmac_free_irq(dev, REQ_IRQ_ERR_ALL, 0); -- 2.35.1
