[media] pwc: do not decompress the image unless the state is DONE
There is no point in trying to decompress a captured frame unless the buffer state is OK. It won't be used in any other state, and in fact the contents of the buffer might well be corrupt. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -619,12 +619,15 @@ static void buffer_finish(struct vb2_buffer *vb)
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struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue);
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struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb);
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/*
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* Application has called dqbuf and is getting back a buffer we've
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* filled, take the pwc data we've stored in buf->data and decompress
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* it into a usable format, storing the result in the vb2_buffer
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*/
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pwc_decompress(pdev, buf);
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if (vb->state == VB2_BUF_STATE_DONE) {
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/*
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* Application has called dqbuf and is getting back a buffer
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* we've filled, take the pwc data we've stored in buf->data
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* and decompress it into a usable format, storing the result
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* in the vb2_buffer.
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*/
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pwc_decompress(pdev, buf);
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}
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}
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static void buffer_cleanup(struct vb2_buffer *vb)
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