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SubjectRe: [PATCH V5 3/5] vDPA: introduce vDPA bus
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On 2020/3/5 上午3:29, Jason Gunthorpe wrote:
> On Wed, Feb 26, 2020 at 02:04:54PM +0800, Jason Wang wrote:
>> +struct vdpa_device *vdpa_alloc_device(struct device *parent,
>> + struct device *dma_dev,
>> + const struct vdpa_config_ops *config)
>> +{
>> + struct vdpa_device *vdev;
>> + int err = -ENOMEM;
>> +
>> + if (!parent || !dma_dev || !config)
>> + goto err;
>> +
>> + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
>> + if (!vdev)
>> + goto err;
>> +
>> + err = ida_simple_get(&vdpa_index_ida, 0, 0, GFP_KERNEL);
>> + if (err < 0)
>> + goto err_ida;
>> +
>> + vdev->dev.bus = &vdpa_bus;
>> + vdev->dev.parent = parent;
>> + vdev->dev.release = vdpa_release_dev;
>> +
>> + device_initialize(&vdev->dev);
>> +
>> + vdev->index = err;
>> + vdev->dma_dev = dma_dev;
>> + vdev->config = config;
>> +
>> + dev_set_name(&vdev->dev, "vdpa%u", vdev->index);
> Probably shouldn't ignore the error for dev_set_name ?
>
> err = dev_set_name()
> if (err) {
> put_device(&vdev->dev);
> return ERR_PTR(err);
> }
>
> Jason
>

Right, will fix.

Thanks

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