biofini(9F)

NAME

     biofini - uninitialize a buffer structure

SYNOPSIS

     #include <sys/ddi.h>
     #include <sys/sunddi.h>

     voidbiofini(struct buf *bp);

INTERFACE LEVEL

     Solaris DDI specific (Solaris DDI).

PARAMETERS

     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  struc-
     ture   using   freerbuf(9F)  because  freerbuf()  will  call
     biofini() directly.

CONTEXT

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

EXAMPLES

     Example 1: Using biofini()

     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