[alsa-devel] [PATCH v2 5/7] ASoC: soc-pcm: goto error after trying all component open

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

soc_pcm_components_open() might goto error process *during* opening
component loop.
In such case, fallback process need to care about operated/non-operated
component.

But, if it goto error process *after* loop even though error happen
during loop, it don't need to care about operated/non-operated.
In such case code can be more simple.
This patch do it. And this is prepare for soc_snd_open() cleanup

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
v1 -> v2

	- indicate error from inside loop

 sound/soc/soc-pcm.c | 37 +++++++++++++++----------------------
 1 file changed, 15 insertions(+), 22 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index cf7c31f..4add629 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -463,47 +463,40 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
 	hw->rate_max = min_not_zero(hw->rate_max, rate_max);
 }
 
-static int soc_pcm_components_open(struct snd_pcm_substream *substream,
-				   struct snd_soc_component **last)
+static int soc_pcm_components_open(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_component *component;
 	int i, ret = 0;
 
 	for_each_rtd_components(rtd, i, component) {
-		*last = component;
+		int r;
 
-		ret = snd_soc_component_module_get_when_open(component);
-		if (ret < 0) {
+		r = snd_soc_component_module_get_when_open(component);
+		if (r < 0)
 			dev_err(component->dev,
 				"ASoC: can't get module %s\n",
 				component->name);
-			return ret;
-		}
+		ret |= r;
 
-		ret = snd_soc_component_open(component, substream);
-		if (ret < 0) {
+		r = snd_soc_component_open(component, substream);
+		if (r < 0)
 			dev_err(component->dev,
 				"ASoC: can't open component %s: %d\n",
-				component->name, ret);
-			return ret;
-		}
+				component->name, r);
+		ret |= r;
 	}
-	*last = NULL;
-	return 0;
+
+	return ret;
 }
 
-static int soc_pcm_components_close(struct snd_pcm_substream *substream,
-				    struct snd_soc_component *last)
+static int soc_pcm_components_close(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_component *component;
 	int i, ret = 0;
 
 	for_each_rtd_components(rtd, i, component) {
-		if (component == last)
-			break;
-
 		ret |= snd_soc_component_close(component, substream);
 		snd_soc_component_module_put_when_close(component);
 	}
@@ -542,7 +535,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		goto out;
 	}
 
-	ret = soc_pcm_components_open(substream, &component);
+	ret = soc_pcm_components_open(substream);
 	if (ret < 0)
 		goto component_err;
 
@@ -641,7 +634,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		snd_soc_dai_shutdown(codec_dai, substream);
 
 component_err:
-	soc_pcm_components_close(substream, component);
+	soc_pcm_components_close(substream);
 
 	snd_soc_dai_shutdown(cpu_dai, substream);
 out:
@@ -695,7 +688,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 
 	soc_rtd_shutdown(rtd, substream);
 
-	soc_pcm_components_close(substream, NULL);
+	soc_pcm_components_close(substream);
 
 	snd_soc_dapm_stream_stop(rtd, substream->stream);
 
-- 
2.7.4