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KPB: reclaim history buffer memory 

Signed-off-by: Marcin Rajwa <marcin.rajwa@linux.intel.com>
This commit is contained in:
Marcin Rajwa 2019-04-09 13:16:02 +02:00 committed by Tomasz Lauda
parent cb4eb46d0a
commit 23d4d12598
1 changed files with 27 additions and 2 deletions
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29
src/audio/kpb.c
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@ -71,6 +71,7 @@ static void kpb_buffer_data(struct comp_data *kpb, struct comp_buffer *source,
size_t size);
static size_t kpb_allocate_history_buffer(struct comp_data *kpb);
static void kpb_clear_history_buffer(struct hb *buff);
static void kpb_free_history_buffer(struct hb *buff);
/**
* \brief Create a key phrase buffer component.
@ -254,6 +255,28 @@ static size_t kpb_allocate_history_buffer(struct comp_data *kpb)
return allocated_size;
}
/**
* \brief Reclaim memory of a history buffer.
* \param[in] buff - pointer to current history buffer.
*
* \return none.
*/
static void kpb_free_history_buffer(struct hb *buff)
{
struct hb *_buff;
/* Free history buffer/s */
while (buff) {
/* first reclaim HB internal memory, then HB itself. */
if (buff->start_addr)
rfree(buff->start_addr);
_buff = buff->next;
rfree(buff);
buff = _buff;
}
}
/**
* \brief Reclaim memory of a key phrase buffer.
* \param[in] dev - component device pointer.
@ -266,8 +289,10 @@ static void kpb_free(struct comp_dev *dev)
trace_kpb("kpb_free()");
/* TODO: reclaim internal buffer memory */
/* reclaim device & component data memory */
/* Reclaim memory occupied by history buffer */
kpb_free_history_buffer(kpb->history_buffer);
/* Free KPB */
rfree(kpb);
rfree(dev);
}