函数逻辑报告

函数名称：dma_alloc_from_dev_coherent() - allocate memory from device coherent pool*@dev: device from which we allocate memory*@size: size of requested memory area*@dma_handle: This will be filled with the correct dma handle*@ret: This pointer will be filled with

函数原型：int dma_alloc_from_dev_coherent(struct device *dev, ssize_t size, dma_addr_t *dma_handle, void **ret)

返回类型：int

参数：