dma_pool_free (9) Linux Manual Page
dma_pool_free – put block back into dma pool
Synopsis
void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t dma);Arguments
pool
-
- the dma pool holding the block
vaddr
- virtual address of block
dma
- dma address of block
Description
Caller promises neither device nor driver will again touch this block unless it is first re-allocated.