ASoC: Fix active count tracking for CODEC to CODEC links

For CODEC to CODEC links we need to make sure to also manage the 'active' field
of the cpu_dai CODEC.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/soc-pcm.c

@@ -61,7 +61,9 @@ void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
 
 	cpu_dai->active++;
 	codec_dai->active++;
-	rtd->codec->active++;
+	if (cpu_dai->codec)
+		cpu_dai->codec->active++;
+	codec_dai->codec->active++;
 }
 
 /**
@@ -91,7 +93,9 @@ void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
 
 	cpu_dai->active--;
 	codec_dai->active--;
-	rtd->codec->active--;
+	if (cpu_dai->codec)
+		cpu_dai->codec->active--;
+	codec_dai->codec->active--;
 }
 
 /**