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Commit 099a728d authored by xypron.glpk@gmx.de's avatar xypron.glpk@gmx.de Committed by David S. Miller
Browse files

net: thunderx: avoid null pointer dereference 



In function bgx_lmac_handler only use a member of
lmac after checking it is not null.

Signed-off-by: default avatarHeinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: default avatarDavid Daney <david.daney@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 07b75260

drivers/net/ethernet/cavium/thunder/thunder_bgx.c

+3 −1
Original line number Diff line number Diff line
@@ -274,12 +274,14 @@ static void bgx_sgmii_change_link_state(struct lmac *lmac) 
static void bgx_lmac_handler(struct net_device *netdev)

{

	struct lmac *lmac = container_of(netdev, struct lmac, netdev);

	struct phy_device *phydev = lmac->phydev;

	struct phy_device *phydev;

	int link_changed = 0;



	if (!lmac)

		return;



	phydev = lmac->phydev;



	if (!phydev->link && lmac->last_link)

		link_changed = -1;