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If devm_request_mem_region() fails this code currently returns success but it should return -EBUSY. Fixes:6076a9711d("drm/virtio: implement blob resources: probe for host visible region") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: http://patchwork.freedesktop.org/patch/msgid/YBpy0GS7GfmafMfe@mwanda Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> (cherry picked from commiteb988a2ee5) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>