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Commit a773632c authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[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: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarKamil Debski <k.debski@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 782f36ca

drivers/media/platform/mem2mem_testdev.c

+21 −0
Original line number Diff line number Diff line
@@ -768,10 +768,31 @@ static void m2mtest_buf_queue(struct vb2_buffer *vb) 
	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);

}



static int m2mtest_stop_streaming(struct vb2_queue *q)

{

	struct m2mtest_ctx *ctx = vb2_get_drv_priv(q);

	struct vb2_buffer *vb;

	unsigned long flags;



	for (;;) {

		if (V4L2_TYPE_IS_OUTPUT(q->type))

			vb = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);

		else

			vb = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);

		if (vb == NULL)

			return 0;

		spin_lock_irqsave(&ctx->dev->irqlock, flags);

		v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR);

		spin_unlock_irqrestore(&ctx->dev->irqlock, flags);

	}

	return 0;

}



static struct vb2_ops m2mtest_qops = {

	.queue_setup	 = m2mtest_queue_setup,

	.buf_prepare	 = m2mtest_buf_prepare,

	.buf_queue	 = m2mtest_buf_queue,

	.stop_streaming  = m2mtest_stop_streaming,

	.wait_prepare	 = vb2_ops_wait_prepare,

	.wait_finish	 = vb2_ops_wait_finish,

};