Daniel P. Berrange 96f43c2b0a ide: avoid referencing NULL dev in rotational rate setting
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: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20171020091403.1479-1-berrange@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2017-10-31 18:00:03 -04:00
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