1biofini(9F)              Kernel Functions for Drivers              biofini(9F)
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NAME

6       biofini - uninitialize a buffer structure
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SYNOPSIS

9       #include <sys/ddi.h>
10       #include <sys/sunddi.h>
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12       void biofini(struct buf *bp);
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INTERFACE LEVEL

16       Solaris DDI specific (Solaris DDI).
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PARAMETERS

19       bp    Pointer to the buffer header structure.
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DESCRIPTION

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

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

34       Example 1 Using biofini()
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36         struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
37         bioinit(bp);
38         /* use buffer */
39         biofini(bp);
40         kmem_free(bp, biosize());
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SEE ALSO

44       bioinit(9F), bioreset(9F), biosize(9F),  freerbuf(9F),  kmem_alloc(9F),
45       kmem_free(9F), buf(9S)
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48       Writing Device Drivers
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52SunOS 5.11                        20 Nov 1996                      biofini(9F)