From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
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 --- include/sound/soc-component.h | 6 +++--- sound/soc/soc-component.c | 17 ++++++++--------- sound/soc/soc-compress.c | 14 ++++++-------- 3 files changed, 17 insertions(+), 20 deletions(-)
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 984dd7353066..9140b5fa19a4 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -221,6 +221,7 @@ struct snd_soc_component { struct snd_pcm_substream *mark_module; struct snd_pcm_substream *mark_open; struct snd_pcm_substream *mark_hw_params; + struct snd_compr_stream *mark_compr_open; void *mark_pm;
#ifdef CONFIG_DEBUG_FS @@ -444,10 +445,9 @@ int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component, int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component, struct of_phandle_args *args, const char **dai_name); -int snd_soc_component_compr_open(struct snd_compr_stream *cstream, - struct snd_soc_component **last); +int snd_soc_component_compr_open(struct snd_compr_stream *cstream); void snd_soc_component_compr_free(struct snd_compr_stream *cstream, - struct snd_soc_component *last); + int rollback); int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd); int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream, struct snd_compr_params *params); diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 5d3a8dcd8d49..434987a64353 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -421,8 +421,7 @@ EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
#endif
-int snd_soc_component_compr_open(struct snd_compr_stream *cstream, - struct snd_soc_component **last) +int snd_soc_component_compr_open(struct snd_compr_stream *cstream) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_component *component; @@ -432,32 +431,32 @@ int snd_soc_component_compr_open(struct snd_compr_stream *cstream, if (component->driver->compress_ops && component->driver->compress_ops->open) { ret = component->driver->compress_ops->open(component, cstream); - if (ret < 0) { - *last = component; + if (ret < 0) return soc_component_ret(component, ret); - } } + soc_component_mark_push(component, cstream, compr_open); }
- *last = NULL; return 0; } EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
void snd_soc_component_compr_free(struct snd_compr_stream *cstream, - struct snd_soc_component *last) + int rollback) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_component *component; int i;
for_each_rtd_components(rtd, i, component) { - if (component == last) - break; + if (rollback && !soc_component_mark_match(component, cstream, compr_open)) + continue;
if (component->driver->compress_ops && component->driver->compress_ops->free) component->driver->compress_ops->free(component, cstream); + + soc_component_mark_pop(component, cstream, compr_open); } } EXPORT_SYMBOL_GPL(snd_soc_component_compr_free); 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);