From: Michael S. Tsirkin <mst@redhat.com>
Date: Tue, 13 Jan 2015 14:43:18 +0000 (+0200)
Subject: virtio/console: verify device has config space
X-Git-Tag: fixes-v4.0-rc1~101^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d909f4315b99e5743041eeb01a2552fcbb125c89;p=pandora-kernel.git

virtio/console: verify device has config space

Some devices might not implement config space access
(e.g. remoteproc used not to - before 3.9).
virtio/console needs config space access so make it
fail gracefully if not there.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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