ASoC: dmaengine: Use SNDRV_PCM_STREAM_LAST for array size

... to make the meaning more obvious.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 0c469cb..ee07903 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -25,7 +25,7 @@
 #include <sound/dmaengine_pcm.h>
 
 struct dmaengine_pcm {
-	struct dma_chan *chan[SNDRV_PCM_STREAM_CAPTURE + 1];
+	struct dma_chan *chan[SNDRV_PCM_STREAM_LAST + 1];
 	const struct snd_dmaengine_pcm_config *config;
 	struct snd_soc_platform platform;
 	unsigned int flags;