dma_buf_put(9) centos man page | unix.com

DMA_BUF_PUT(9)						   Device drivers infrastructure					    DMA_BUF_PUT(9)

NAME
       dma_buf_put - decreases refcount of the buffer

SYNOPSIS
       void dma_buf_put(struct dma_buf * dmabuf);

ARGUMENTS
       dmabuf
	   [in] buffer to reduce refcount of

DESCRIPTION
       Uses file's refcounting done implicitly by fput

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							    DMA_BUF_PUT(9)