NAME

biofini - uninitialize a buffer structure

SYNOPSIS

#include <sys/ddi.h>

#include <sys/sunddi.h>

void biofini(struct buf * bp);

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).

ARGUMENTS

bp

Pointer to the buffer header structure.

DESCRIPTION

The biofini( ) function uninitializes a buf(9S) structure. If a buffer structure has been allocated and initialized using kmem_alloc(9F) and bioinit(9F) it needs to be uninitialized using biofini( ) before calling kmem_free(9F). It is not necessary to call biofini( ) before freeing a buffer structure using freerbuf(9F) because freerbuf( ) will call biofini( ) directly.

CONTEXT

The biofini( ) function can be called from any context.

EXAMPLES

struct buf * bp= kmem_alloc(biosize(), KM_SLEEP);

bioinit(bp);
/* use buffer * /
biofini(bp);
kmem_free(bp, biosize());

SEE ALSO

bioinit(9F), bioreset(9F), biosize(9F), freerbuf(9F), kmem_alloc(9F), kmem_free(9F), buf(9S)

Writing Device Drivers