centos man page for dma_pool_free

DMA_POOL_FREE(9)					    Memory Management in Linux						  DMA_POOL_FREE(9)

NAME
       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.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  DMA_POOL_FREE(9)