Commits
Michael S. Tsirkin committed d6db3f5c11d
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>