ASoC: pxa-pcm-lib: initialize DMA channel to -1
This fixes a warning ("pxa_free_dma: trying to free channel 0 which is already freed") when a device was opened but the hw_params() call failed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -205,6 +205,7 @@ int __pxa2xx_pcm_open(struct snd_pcm_substream *substream)
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if (!rtd->dma_desc_array)
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goto err1;
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rtd->dma_ch = -1;
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runtime->private_data = rtd;
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return 0;
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