net: hibmcge: set netdev_ops before hbg_init() to fix NULL pointer dereference

The driver assigns netdev_ops after hbg_init(), but hbg_init() calls
hbg_mdio_init() -> hbg_phy_connect() -> phy_connect_direct() ->
phy_attach_direct() -> phy_link_topo_add_phy(), which invokes
netdev_need_ops_lock(). With CONFIG_NET_SHAPER enabled, this function
dereferences dev->netdev_ops->net_shaper_ops. Since netdev_ops is still
NULL at this point, a NULL pointer dereference occurs.

Move the netdev_ops assignment before hbg_init() so that
netdev_need_ops_lock() can safely access netdev_ops during PHY
attachment.

The issue was hit and verified on an evaluation board.

Fixes: ff4edac6e9bd ("net: hibmcge: Implement some .ndo functions")
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20261016110421.2288670-1-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions