Damjan Marion 9e71668b42 virtio: fix crash if CQ is not negotiated
Fix NULL dereference if virtio control queue is not negotiated.

Signed-off-by: Damjan Marion <damarion@cisco.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
2015-06-12 14:50:06 +02:00
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