Commit 95a234f6 authored by Haoxiang Li's avatar Haoxiang Li Committed by Jakub Kicinski
Browse files

net: ethernet: rtsn: Fix a null pointer dereference in rtsn_probe() 



Add check for the return value of rcar_gen4_ptp_alloc()
to prevent potential null pointer dereference.

Fixes: b0d3969d ("net: ethernet: rtsn: Add support for Renesas Ethernet-TSN")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarHaoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20250703100109.2541018-1-haoxiang_li2024@163.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 462da827

drivers/net/ethernet/renesas/rtsn.c

+5 −0
Original line number Diff line number Diff line
@@ -1259,7 +1259,12 @@ static int rtsn_probe(struct platform_device *pdev) 
	priv = netdev_priv(ndev);

	priv->pdev = pdev;

	priv->ndev = ndev;



	priv->ptp_priv = rcar_gen4_ptp_alloc(pdev);

	if (!priv->ptp_priv) {

		ret = -ENOMEM;

		goto error_free;

	}



	spin_lock_init(&priv->lock);

	platform_set_drvdata(pdev, priv);