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[media] mem2mem_testdev: return pending buffers in stop_streaming()
To keep the vb2 buffer administration in balance stop_streaming() must return any pending buffers to the vb2 framework. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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1 changed files with 21 additions and 0 deletions
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@ -768,10 +768,31 @@ static void m2mtest_buf_queue(struct vb2_buffer *vb)
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v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
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}
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static int m2mtest_stop_streaming(struct vb2_queue *q)
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{
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struct m2mtest_ctx *ctx = vb2_get_drv_priv(q);
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struct vb2_buffer *vb;
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unsigned long flags;
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for (;;) {
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if (V4L2_TYPE_IS_OUTPUT(q->type))
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vb = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
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else
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vb = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
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if (vb == NULL)
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return 0;
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spin_lock_irqsave(&ctx->dev->irqlock, flags);
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v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);
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spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
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}
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return 0;
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}
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static struct vb2_ops m2mtest_qops = {
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.queue_setup = m2mtest_queue_setup,
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.buf_prepare = m2mtest_buf_prepare,
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.buf_queue = m2mtest_buf_queue,
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.stop_streaming = m2mtest_stop_streaming,
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.wait_prepare = vb2_ops_wait_prepare,
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.wait_finish = vb2_ops_wait_finish,
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};
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