> +struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
> + struct device *dev)
> +{
> + struct dma_buf_attachment *attach;
> + int ret;
> +
> + BUG_ON(!dmabuf || !dev);
> +
> + mutex_lock(&dmabuf->lock);
> +
> + attach = kzalloc(sizeof(struct dma_buf_attachment), GFP_KERNEL);
> + if (attach == NULL)
> + goto err_alloc;
> +
> + attach->dev = dev;
> + if (dmabuf->ops->attach) {
> + ret = dmabuf->ops->attach(dmabuf, dev, attach);
> + if (!ret)
> + goto err_attach;
> + }
> + list_add(&attach->node, &dmabuf->attachments);
> +
I would assume at some point this needed at
attach->dmabuf = dmabuf;
added.
Dave.
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