diff options
Diffstat (limited to 'net/8021q/vlan.c')
| -rw-r--r-- | net/8021q/vlan.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index d4bcfd8f95bf..f292e0267bb9 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -51,12 +51,16 @@ static int vlan_group_prealloc_vid(struct vlan_group *vg, __be16 vlan_proto, u16 vlan_id) { struct net_device **array; - unsigned int pidx, vidx; + unsigned int vidx; unsigned int size; + int pidx; ASSERT_RTNL(); pidx = vlan_proto_idx(vlan_proto); + if (pidx < 0) + return -EINVAL; + vidx = vlan_id / VLAN_GROUP_ARRAY_PART_LEN; array = vg->vlan_devices_arrays[pidx][vidx]; if (array != NULL) |