From: Claudiu Manoil Date: Tue, 5 Nov 2019 21:50:14 +0000 (+0200) Subject: net: mscc: ocelot: fix NULL pointer on LAG slave removal X-Git-Tag: v5.4-rc7~16^2~21^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3b3eed8eec47259939ee6c3d58aea1c311ddee3b;p=platform%2Fkernel%2Flinux-rpi.git net: mscc: ocelot: fix NULL pointer on LAG slave removal lag_upper_info may be NULL on slave removal. Fixes: dc96ee3730fc ("net: mscc: ocelot: add bonding support") Signed-off-by: Claudiu Manoil Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index dbf09fc..672ea13 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1724,7 +1724,8 @@ static int ocelot_netdevice_event(struct notifier_block *unused, struct netdev_lag_upper_info *lag_upper_info = info->upper_info; struct netlink_ext_ack *extack; - if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { + if (lag_upper_info && + lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { extack = netdev_notifier_info_to_extack(&info->info); NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");