diff options
Diffstat (limited to 'drivers/vdpa/vdpa.c')
| -rw-r--r-- | drivers/vdpa/vdpa.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 1dc121a07a93..d783a943647d 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -26,8 +26,16 @@ static int vdpa_dev_probe(struct device *d) { struct vdpa_device *vdev = dev_to_vdpa(d); struct vdpa_driver *drv = drv_to_vdpa(vdev->dev.driver); + const struct vdpa_config_ops *ops = vdev->config; + u32 max_num, min_num = 1; int ret = 0; + max_num = ops->get_vq_num_max(vdev); + if (ops->get_vq_num_min) + min_num = ops->get_vq_num_min(vdev); + if (max_num < min_num) + return -EINVAL; + if (drv && drv->probe) ret = drv->probe(vdev); |