diff options
| author | Stephen Hemminger <stephen@networkplumber.org> | 2018-03-20 15:03:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-22 12:45:09 -0400 |
| commit | 8348e0460ab1473f06c8b824699dd2eed3c1979d (patch) | |
| tree | 2c4f7d3d8dcabc3c8ef6c643ee71c46665c26f98 /drivers | |
| parent | 68e2ffdeb5dbf54bc3a0684aa4e73c6db8675eed (diff) | |
| download | linux-8348e0460ab1473f06c8b824699dd2eed3c1979d.tar.bz2 | |
hv_netvsc: disable NAPI before channel close
This makes sure that no CPU is still process packets when
the channel is closed.
Fixes: 76bb5db5c749 ("netvsc: fix use after free on module removal")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 0265d703eb03..e70a44273f55 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -568,6 +568,10 @@ void netvsc_device_remove(struct hv_device *device) RCU_INIT_POINTER(net_device_ctx->nvdev, NULL); + /* And disassociate NAPI context from device */ + for (i = 0; i < net_device->num_chn; i++) + netif_napi_del(&net_device->chan_table[i].napi); + /* * At this point, no one should be accessing net_device * except in here @@ -579,10 +583,6 @@ void netvsc_device_remove(struct hv_device *device) netvsc_teardown_gpadl(device, net_device); - /* And dissassociate NAPI context from device */ - for (i = 0; i < net_device->num_chn; i++) - netif_napi_del(&net_device->chan_table[i].napi); - /* Release all resources */ free_netvsc_device_rcu(net_device); } |