diff options
Diffstat (limited to 'drivers/s390/virtio/virtio_ccw.c')
| -rw-r--r-- | drivers/s390/virtio/virtio_ccw.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index ff06bdfd2b20..2bb275fb39d1 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -283,6 +283,8 @@ static void virtio_ccw_drop_indicators(struct virtio_ccw_device *vcdev) { struct virtio_ccw_vq_info *info; + if (!vcdev->airq_info) + return; list_for_each_entry(info, &vcdev->virtqueues, node) drop_airq_indicator(info->vq, vcdev->airq_info); } @@ -423,7 +425,7 @@ static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev, ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF); if (ret) return ret; - return vcdev->config_block->num; + return vcdev->config_block->num ?: -ENOENT; } static void virtio_ccw_del_vq(struct virtqueue *vq, struct ccw1 *ccw) |