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由 Daniel P. Berrange 提交于
The 'dev' variable can be NULL when the guest OS calls identify on an IDE unit that does not have a drive attached to it. Signed-off-by: NDaniel P. Berrange <berrange@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 20171020091403.1479-1-berrange@redhat.com Signed-off-by: NJohn Snow <jsnow@redhat.com>
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