ASoC: soc-pcm.c: random cleanup

Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

These are not related, but random cleanup patches for soc-pcm.c

sound/soc/soc-pcm.c

@@ -27,6 +27,28 @@
 #include <sound/soc-link.h>
 #include <sound/initval.h>
 
+#define soc_pcm_ret(rtd, ret) _soc_pcm_ret(rtd, __func__, ret)
+static inline int _soc_pcm_ret(struct snd_soc_pcm_runtime *rtd,
+			       const char *func, int ret)
+{
+	/* Positive, Zero values are not errors */
+	if (ret >= 0)
+		return ret;
+
+	/* Negative values might be errors */
+	switch (ret) {
+	case -EPROBE_DEFER:
+	case -ENOTSUPP:
+		break;
+	default:
+		dev_err(rtd->dev,
+			"ASoC: error at %s on %s: %d\n",
+			func, rtd->dai_link->name, ret);
+	}
+
+	return ret;
+}
+
 static inline void snd_soc_dpcm_mutex_lock(struct snd_soc_pcm_runtime *rtd)
 {
 	mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
@@ -832,12 +854,10 @@ static int __soc_pcm_open(struct snd_soc_pcm_runtime *rtd,
 	snd_soc_runtime_activate(rtd, substream->stream);
 	ret = 0;
 err:
-	if (ret < 0) {
+	if (ret < 0)
 		soc_pcm_clean(rtd, substream, 1);
-		dev_err(rtd->dev, "%s() failed (%d)", __func__, ret);
-	}
 
-	return ret;
+	return soc_pcm_ret(rtd, ret);
 }
 
 /* PCM open ops for non-DPCM streams */
@@ -852,16 +872,6 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	return ret;
 }
 
-static void codec2codec_close_delayed_work(struct snd_soc_pcm_runtime *rtd)
-{
-	/*
-	 * Currently nothing to do for c2c links
-	 * Since c2c links are internal nodes in the DAPM graph and
-	 * don't interface with the outside world or application layer
-	 * we don't have to do any special handling on close.
-	 */
-}
-
 /*
  * Called by ALSA when the PCM substream is prepared, can set format, sample
  * rate, etc.  This function is non atomic and can be called multiple times,
@@ -901,10 +911,7 @@ static int __soc_pcm_prepare(struct snd_soc_pcm_runtime *rtd,
 		snd_soc_dai_digital_mute(dai, 0, substream->stream);
 
 out:
-	if (ret < 0)
-		dev_err(rtd->dev, "ASoC: %s() failed (%d)\n", __func__, ret);
-
-	return ret;
+	return soc_pcm_ret(rtd, ret);
 }
 
 /* PCM prepare ops for non-DPCM streams */
@@ -1070,12 +1077,10 @@ static int __soc_pcm_hw_params(struct snd_soc_pcm_runtime *rtd,
 
 	ret = snd_soc_pcm_component_hw_params(substream, params);
 out:
-	if (ret < 0) {
+	if (ret < 0)
 		soc_pcm_hw_clean(rtd, substream, 1);
-		dev_err(rtd->dev, "ASoC: %s() failed (%d)\n", __func__, ret);
-	}
 
-	return ret;
+	return soc_pcm_ret(rtd, ret);
 }
 
 /* hw_params PCM ops for non-DPCM streams */
@@ -1453,6 +1458,10 @@ static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream,
 	struct snd_soc_dapm_widget *widget;
 	int i, new = 0, err;
 
+	/* don't connect if FE is not running */
+	if (!fe->dpcm[stream].runtime && !fe->fe_compr)
+		return new;
+
 	/* Create any new FE <--> BE connections */
 	for_each_dapm_widgets(list, i, widget) {
 
@@ -1477,10 +1486,6 @@ static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream,
 			continue;
 		}
 
-		/* don't connect if FE is not running */
-		if (!fe->dpcm[stream].runtime && !fe->fe_compr)
-			continue;
-
 		/*
 		 * Filter for systems with 'component_chaining' enabled.
 		 * This helps to avoid unnecessary re-configuration of an
@@ -1637,10 +1642,7 @@ int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
 unwind:
 	dpcm_be_dai_startup_rollback(fe, stream, dpcm);
 
-	dev_err(fe->dev, "ASoC: %s() failed at %s (%d)\n",
-		__func__, be->dai_link->name, err);
-
-	return err;
+	return soc_pcm_ret(fe, err);
 }
 
 static void dpcm_runtime_setup_fe(struct snd_pcm_substream *substream)
@@ -1840,10 +1842,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 		}
 	}
 error:
-	if (err < 0)
-		dev_err(fe->dev, "ASoC: %s failed (%d)\n", __func__, err);
-
-	return err;
+	return soc_pcm_ret(fe, err);
 }
 
 static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream)
@@ -1880,10 +1879,7 @@ static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream)
 be_err:
 	dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO);
 
-	if (ret < 0)
-		dev_err(fe->dev, "%s() failed (%d)\n", __func__, ret);
-
-	return ret;
+	return soc_pcm_ret(fe, ret);
 }
 
 static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream)
@@ -2082,10 +2078,7 @@ static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream,
 	dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO);
 	snd_soc_dpcm_mutex_unlock(fe);
 
-	if (ret < 0)
-		dev_err(fe->dev, "ASoC: %s failed (%d)\n", __func__, ret);
-
-	return ret;
+	return soc_pcm_ret(fe, ret);
 }
 
 int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream,
@@ -2254,10 +2247,7 @@ int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream,
 		if (ret)
 			break;
 	}
-	if (ret < 0)
-		dev_err(fe->dev, "ASoC: %s() failed at %s (%d)\n",
-			__func__, be->dai_link->name, ret);
-	return ret;
+	return soc_pcm_ret(fe, ret);
 }
 EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger);
 
@@ -2428,10 +2418,7 @@ int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream)
 		be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;
 	}
 
-	if (ret < 0)
-		dev_err(fe->dev, "ASoC: %s() failed (%d)\n", __func__, ret);
-
-	return ret;
+	return soc_pcm_ret(fe, ret);
 }
 
 static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream)
@@ -2468,10 +2455,7 @@ static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream)
 	dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO);
 	snd_soc_dpcm_mutex_unlock(fe);
 
-	if (ret < 0)
-		dev_err(fe->dev, "ASoC: %s() failed (%d)\n", __func__, ret);
-
-	return ret;
+	return soc_pcm_ret(fe, ret);
 }
 
 static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream)
@@ -2504,10 +2488,7 @@ static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream)
 	/* run the stream event for each BE */
 	dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP);
 
-	if (err < 0)
-		dev_err(fe->dev, "ASoC: %s() failed (%d)\n", __func__, err);
-
-	return err;
+	return soc_pcm_ret(fe, err);
 }
 
 static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
@@ -2597,10 +2578,7 @@ static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 				dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
 	}
 
-	if (ret < 0)
-		dev_err(fe->dev, "ASoC: %s() failed (%d)\n", __func__, ret);
-
-	return ret;
+	return soc_pcm_ret(fe, ret);
 }
 
 static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new)
@@ -2899,9 +2877,13 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 		return ret;
 
 	/* DAPM dai link stream work */
-	if (rtd->dai_link->params)
-		rtd->close_delayed_work_func = codec2codec_close_delayed_work;
-	else
+	/*
+	 * Currently nothing to do for c2c links
+	 * Since c2c links are internal nodes in the DAPM graph and
+	 * don't interface with the outside world or application layer
+	 * we don't have to do any special handling on close.
+	 */
+	if (!rtd->dai_link->params)
 		rtd->close_delayed_work_func = snd_soc_close_delayed_work;
 
 	rtd->pcm = pcm;