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| author | Vitaly Kuznetsov <[email protected]> | 2016-08-15 17:48:42 +0200 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2016-08-15 13:48:07 -0700 |
| commit | 0f20d795f78d182c4b743d880a5e8dc4d39892fe (patch) | |
| tree | 3ac000985b098e8b6ad0773d495570a00c6393a8 /tools/perf/scripts/python/netdev-times.py | |
| 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 <[email protected]>
Acked-by: Haiyang Zhang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions