Michael S. Tsirkin d6db3f5c11 vhost: fix get_user_pages_fast error handling ...

get_user_pages_fast returns number of pages on success, negative value
on failure, but never 0. Fix vhost code to match this logic.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2010-02-28 19:42:36 +02:00

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