[PATCH linux-next 2/4] ipvlan: fix possible NULL pointer dereference in ipvlan_get_iflink

Honggang Li
2015-04-14T15:20:15Z

Signed-off-by: Honggang Li <honli@redhat.com>
---
drivers/net/ipvlan/ipvlan_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 77b92a0..479fcf7 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -308,7 +308,10 @@ static int ipvlan_get_iflink(const struct net_device *dev)
{
struct ipvl_dev *ipvlan = netdev_priv(dev);

- return ipvlan->phy_dev->ifindex;
+ if (ipvlan && pvlan->phy_dev)
+ return ipvlan->phy_dev->ifindex;
+ else
+ return 0;
}

static const struct net_device_ops ipvlan_netdev_ops = {
--
1.8.3.1