ASoC: soc-component: add mark for snd_soc_component_compr_open/free()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

	static int soc_compr_open(xxx)
	{
		...
		if (ret < 0)
			goto xxx_err;
		...
		return 0;

 ^	machine_err:
 |		...
 |	out:
(A)		...
 |	pm_err:
 |		...
 v		return ret;
	}

The difference is
soc_compr_free()  is for all dai/component/substream,
rollback          is for succeeded part only.

This kind of duplicated code can be a hotbed of bugs,
thus, we want to share soc_compr_free() and rollback.
	1) snd_soc_dai_compr_startup/shutdown()
=>	2) snd_soc_component_compr_open/free()
	3) snd_soc_link_compr_startup/shutdown()

This patch is for 2) snd_soc_component_compr_open/free(),
and adds new cstream mark.
It will mark cstream when startup() was suceeded.
If rollback happen *after* that, it will check rollback flag
and marked cstream.

It cares *previous* startup() only now,
but we might want to check *whole* marked cstream in the future.
This patch is using macro so that it can be easily adjust to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87lfey5iwk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 6 insertions, 8 deletions

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index d85b6b174006..8b6a6bd482d1 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -43,7 +43,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 
 	snd_soc_link_compr_shutdown(cstream);
 
-	snd_soc_component_compr_free(cstream, NULL);
+	snd_soc_component_compr_free(cstream, 0);
 
 	snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);
 
@@ -59,7 +59,6 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 static int soc_compr_open(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
-	struct snd_soc_component *component = NULL;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
 	int ret;
@@ -74,7 +73,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 	if (ret < 0)
 		goto out;
 
-	ret = snd_soc_component_compr_open(cstream, &component);
+	ret = snd_soc_component_compr_open(cstream);
 	if (ret < 0)
 		goto machine_err;
 
@@ -89,7 +88,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 	return 0;
 
 machine_err:
-	snd_soc_component_compr_free(cstream, component);
+	snd_soc_component_compr_free(cstream, 1);
 
 	snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
 out:
@@ -105,7 +104,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
 	struct snd_pcm_substream *fe_substream =
 		 fe->pcm->streams[cstream->direction].substream;
-	struct snd_soc_component *component;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(fe, 0);
 	struct snd_soc_dpcm *dpcm;
 	struct snd_soc_dapm_widget_list *list;
@@ -142,7 +140,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	if (ret < 0)
 		goto out;
 
-	ret = snd_soc_component_compr_open(cstream, &component);
+	ret = snd_soc_component_compr_open(cstream);
 	if (ret < 0)
 		goto open_err;
 
@@ -163,7 +161,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	return 0;
 
 machine_err:
-	snd_soc_component_compr_free(cstream, component);
+	snd_soc_component_compr_free(cstream, 1);
 open_err:
 	snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
 out:
@@ -209,7 +207,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
 
 	snd_soc_link_compr_shutdown(cstream);
 
-	snd_soc_component_compr_free(cstream, NULL);
+	snd_soc_component_compr_free(cstream, 0);
 
 	snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);