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biofini - uninitialize a buffer structure

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

void biofini(struct buf *bp);

illumos DDI specific (illumos DDI). bp 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. The biofini() function can be called from any context. Example 1 Using biofini()

struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
bioinit(bp);
/* use buffer */
biofini(bp);
kmem_free(bp, biosize());

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

Writing Device Drivers