From: Nishanth Menon In the TX completion packet stage of TI SoCs with CPSW2G instance, which has single external ethernet port, ndev is accessed without being initialized if no TX packets have been processed. It results into null pointer dereference, causing kernel to crash. Fix this by having a check on the number of TX packets which have been processed. Fixes: 9a369ae3d143 ("net: ethernet: ti: am65-cpsw: remove am65_cpsw_nuss_tx_compl_packets_2g()") Signed-off-by: Nishanth Menon Signed-off-by: Chintan Vankar --- Hello All, This patch is based on the commit '5189446ba995' of origin/main branch of Linux-net repository. drivers/net/ethernet/ti/am65-cpsw-nuss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index ecd6ecac87bb..8b2364f5f731 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -1522,7 +1522,7 @@ static int am65_cpsw_nuss_tx_compl_packets(struct am65_cpsw_common *common, } } - if (single_port) { + if (single_port && num_tx) { netif_txq = netdev_get_tx_queue(ndev, chn); netdev_tx_completed_queue(netif_txq, num_tx, total_bytes); am65_cpsw_nuss_tx_wake(tx_chn, ndev, netif_txq); -- 2.34.1