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@@ -176,17 +176,20 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel(
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{
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struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
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struct snd_dmaengine_dai_dma_data *dma_data;
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+ dma_filter_fn fn = NULL;
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dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0])
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return pcm->chan[0];
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- if (pcm->config->compat_request_channel)
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+ if (pcm->config && pcm->config->compat_request_channel)
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return pcm->config->compat_request_channel(rtd, substream);
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- return snd_dmaengine_pcm_request_channel(pcm->config->compat_filter_fn,
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- dma_data->filter_data);
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+ if (pcm->config)
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+ fn = pcm->config->compat_filter_fn;
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+
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+ return snd_dmaengine_pcm_request_channel(fn, dma_data->filter_data);
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}
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static bool dmaengine_pcm_can_report_residue(struct dma_chan *chan)
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