Re: [PATCH net] netvsc: fix race during initialization

From: Stephen Hemminger <stephen@networkplumber.org>
Date: Thu, 16 Mar 2017 12:21:32 -0700

When device is being setup on boot, there is a small race where
network device callback is registered, but the netvsc_device pointer
is not set yet.  This can cause a NULL ptr dereference if packet
arrives during this window.

Fixes: 46b4f7f5d1f7 ("netvsc: eliminate per-device outstanding send counter")
Signed-off-by: Stephen Hemminger <redacted>
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Applies to 4.11 only, not in earlier versions.
net-next needs different patch

Applied, thanks Stephen.