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path: root/drivers/media/video/cx18/cx18-queue.c
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Diffstat (limited to 'drivers/media/video/cx18/cx18-queue.c')
-rw-r--r--drivers/media/video/cx18/cx18-queue.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index 7b09c9a3ee8..fdfc83ee3d4 100644
--- a/drivers/media/video/cx18/cx18-queue.c
+++ b/drivers/media/video/cx18/cx18-queue.c
@@ -42,8 +42,8 @@ void cx18_queue_init(struct cx18_queue *q)
q->bytesused = 0;
}
-void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
- struct cx18_queue *q)
+void _cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
+ struct cx18_queue *q, int to_front)
{
/* clear the buffer if it is going to be enqueued to the free queue */
if (q == &s->q_free) {
@@ -53,7 +53,10 @@ void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
buf->skipped = 0;
}
mutex_lock(&s->qlock);
- list_add_tail(&buf->list, &q->list);
+ if (to_front)
+ list_add(&buf->list, &q->list); /* LIFO */
+ else
+ list_add_tail(&buf->list, &q->list); /* FIFO */
atomic_inc(&q->buffers);
q->bytesused += buf->bytesused - buf->readpos;
mutex_unlock(&s->qlock);
@@ -159,7 +162,6 @@ static void cx18_queue_flush(struct cx18_stream *s, struct cx18_queue *q)
void cx18_flush_queues(struct cx18_stream *s)
{
- cx18_queue_flush(s, &s->q_io);
cx18_queue_flush(s, &s->q_full);
}