diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2016-08-15 17:48:42 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-15 13:48:07 -0700 |
| commit | 0f20d795f78d182c4b743d880a5e8dc4d39892fe (patch) | |
| tree | 3ac000985b098e8b6ad0773d495570a00c6393a8 /mm/swap_cgroup.c | |
| parent | 57c1826b991244d2144eb6e3d5d1b13a53cbea63 (diff) | |
hv_netvsc: protect module refcount by checking net_device_ctx->vf_netdev
We're not guaranteed to see NETDEV_REGISTER/NETDEV_UNREGISTER notifications
only once per VF but we increase/decrease module refcount unconditionally.
Check vf_netdev to make sure we don't take/release it twice. We presume
that only one VF per netvsc device may exist.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/swap_cgroup.c')
0 files changed, 0 insertions, 0 deletions