Esempi in C++ (Cpp) per ion_handle_get

Esempio n. 1

File: ion.c Progetto: fulmix/fulmix.Kernel

struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd)
{
	struct dma_buf *dmabuf;
	struct ion_buffer *buffer;
	struct ion_handle *handle;

	dmabuf = dma_buf_get(fd);
	if (IS_ERR_OR_NULL(dmabuf))
		return ERR_PTR(PTR_ERR(dmabuf));
	

	if (dmabuf->ops != &dma_buf_ops) {
		pr_err("%s: can not import dmabuf from another exporter\n",
		       __func__);
		dma_buf_put(dmabuf);
		return ERR_PTR(-EINVAL);
	}
	buffer = dmabuf->priv;

	mutex_lock(&client->lock);
	
	handle = ion_handle_lookup(client, buffer);
	if (!IS_ERR_OR_NULL(handle)) {
		ion_handle_get(handle);
		goto end;
	}
	handle = ion_handle_create(client, buffer);
	if (IS_ERR_OR_NULL(handle))
		goto end;
	ion_handle_add(client, handle);
end:
	mutex_unlock(&client->lock);
	dma_buf_put(dmabuf);
	return handle;
}

Esempio n. 2

File: ion.c Progetto: mcrosson/samsung_kernel_comanche

struct ion_handle *ion_import(struct ion_client *client,
			      struct ion_buffer *buffer)
{
	struct ion_handle *handle = NULL;

	mutex_lock(&client->lock);
	/* if a handle exists for this buffer just take a reference to it */
	handle = ion_handle_lookup(client, buffer);
	if (!IS_ERR_OR_NULL(handle)) {
		ion_handle_get(handle);
		goto end;
	}
	handle = ion_handle_create(client, buffer);
	if (IS_ERR_OR_NULL(handle))
		goto end;
	ion_handle_add(client, handle);
end:
	mutex_unlock(&client->lock);
	return handle;
}