ddi_dma_unbind_handle - unbinds the address in a DMA handle
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_unbind_handle(ddi_dma_handle_t handle);
illumos DDI specific (illumos DDI).
ddi_dma_unbind_handle() frees all DMA resources associated with an
existing DMA handle. When a DMA transfer completes, the driver
should call ddi_dma_unbind_handle() to free system DMA resources
established by a call to ddi_dma_buf_bind_handle(9F) or
ddi_dma_addr_bind_handle(9F). ddi_dma_unbind_handle() does an
implicit ddi_dma_sync(9F) making further synchronization steps
unnecessary.
DDI_SUCCESS
on success
DDI_FAILURE
on failure
ddi_dma_unbind_handle() can be called from user, kernel, or interrupt
context.