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[media] return BUF_STATE_ERROR if streaming stopped during acquisition
When stop_streaming is called while a frame is currently being retrieved, the buffer being filled will still be returned with BUF_STATE_DONE. By resetting the sequence number and checking before returning the buffer, it can now correctly be returned with BUF_STATE_ERROR. Signed-off-by: Martin Kaltenbrunner <modin@yuri.at> Signed-off-by: Florian Echtler <floe@butterbrot.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -438,6 +438,10 @@ static void sur40_process_video(struct sur40_state *sur40)
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dev_dbg(sur40->dev, "image acquired\n");
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/* return error if streaming was stopped in the meantime */
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if (sur40->sequence == -1)
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goto err_poll;
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/* mark as finished */
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v4l2_get_timestamp(&new_buf->vb.v4l2_buf.timestamp);
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new_buf->vb.v4l2_buf.sequence = sur40->sequence++;
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@ -723,6 +727,7 @@ static int sur40_start_streaming(struct vb2_queue *vq, unsigned int count)
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static void sur40_stop_streaming(struct vb2_queue *vq)
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{
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struct sur40_state *sur40 = vb2_get_drv_priv(vq);
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sur40->sequence = -1;
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/* Release all active buffers */
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return_all_buffers(sur40, VB2_BUF_STATE_ERROR);
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