From b3e6b82a0099dfef038e40c630a554ed1e402504 Mon Sep 17 00:00:00 2001
From: KY Srinivasan <kys@microsoft.com>
Date: Wed, 22 Jul 2015 11:42:32 -0700
Subject: [PATCH] hv_netvsc: Wait for sub-channels to be processed during probe

The current code returns from probe without waiting for the proper handling
of subchannels that may be requested. If the netvsc driver were to be rapidly
loaded/unloaded, we can  trigger a panic as the unload will be tearing
down state that may not have been fully setup yet. We fix this issue by making
sure that we return from the probe call only after ensuring that the
sub-channel offers in flight are properly handled.

Reviewed-and-tested-by: Haiyang Zhang <haiyangz@microsoft.com
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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