diff options
Diffstat (limited to 'sound')
-rw-r--r-- | sound/soc/soc-component.c | 35 | ||||
-rw-r--r-- | sound/soc/soc-pcm.c | 28 |
2 files changed, 40 insertions, 23 deletions
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 5504b92946e3..147b46e29ff4 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -33,6 +33,14 @@ static inline int _soc_component_ret(struct snd_soc_component *component, return ret; } +/* + * We might want to check substream by using list. + * In such case, we can update these macros. + */ +#define soc_component_mark_push(component, substream, tgt) ((component)->mark_##tgt = substream) +#define soc_component_mark_pop(component, substream, tgt) ((component)->mark_##tgt = NULL) +#define soc_component_mark_match(component, substream, tgt) ((component)->mark_##tgt == substream) + void snd_soc_component_set_aux(struct snd_soc_component *component, struct snd_soc_aux_dev *aux) { @@ -238,6 +246,7 @@ int snd_soc_component_set_jack(struct snd_soc_component *component, EXPORT_SYMBOL_GPL(snd_soc_component_set_jack); int snd_soc_component_module_get(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int upon_open) { int ret = 0; @@ -246,14 +255,25 @@ int snd_soc_component_module_get(struct snd_soc_component *component, !try_module_get(component->dev->driver->owner)) ret = -ENODEV; + /* mark substream if succeeded */ + if (ret == 0) + soc_component_mark_push(component, substream, module); + return soc_component_ret(component, ret); } void snd_soc_component_module_put(struct snd_soc_component *component, - int upon_open) + struct snd_pcm_substream *substream, + int upon_open, int rollback) { + if (rollback && !soc_component_mark_match(component, substream, module)) + return; + if (component->driver->module_get_upon_open == !!upon_open) module_put(component->dev->driver->owner); + + /* remove marked substream */ + soc_component_mark_pop(component, substream, module); } int snd_soc_component_open(struct snd_soc_component *component, @@ -264,17 +284,28 @@ int snd_soc_component_open(struct snd_soc_component *component, if (component->driver->open) ret = component->driver->open(component, substream); + /* mark substream if succeeded */ + if (ret == 0) + soc_component_mark_push(component, substream, open); + return soc_component_ret(component, ret); } int snd_soc_component_close(struct snd_soc_component *component, - struct snd_pcm_substream *substream) + struct snd_pcm_substream *substream, + int rollback) { int ret = 0; + if (rollback && !soc_component_mark_match(component, substream, open)) + return 0; + if (component->driver->close) ret = component->driver->close(component, substream); + /* remove marked substream */ + soc_component_mark_pop(component, substream, open); + return soc_component_ret(component, ret); } diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 45c19643d8e3..d9f9c0a243df 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -609,14 +609,11 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) static int soc_pcm_components_open(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_soc_component *last = NULL; struct snd_soc_component *component; int i, ret = 0; for_each_rtd_components(rtd, i, component) { - last = component; - - ret = snd_soc_component_module_get_when_open(component); + ret = snd_soc_component_module_get_when_open(component, substream); if (ret < 0) { dev_err(component->dev, "ASoC: can't get module %s\n", @@ -626,7 +623,6 @@ static int soc_pcm_components_open(struct snd_pcm_substream *substream) ret = snd_soc_component_open(component, substream); if (ret < 0) { - snd_soc_component_module_put_when_close(component); dev_err(component->dev, "ASoC: can't open component %s: %d\n", component->name, ret); @@ -634,32 +630,22 @@ static int soc_pcm_components_open(struct snd_pcm_substream *substream) } } - if (ret < 0) { - /* rollback on error */ - for_each_rtd_components(rtd, i, component) { - if (component == last) - break; - - snd_soc_component_close(component, substream); - snd_soc_component_module_put_when_close(component); - } - } - return ret; } -static int soc_pcm_components_close(struct snd_pcm_substream *substream) +static int soc_pcm_components_close(struct snd_pcm_substream *substream, + int rollback) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); struct snd_soc_component *component; int i, r, ret = 0; for_each_rtd_components(rtd, i, component) { - r = snd_soc_component_close(component, substream); + r = snd_soc_component_close(component, substream, rollback); if (r < 0) ret = r; /* use last ret */ - snd_soc_component_module_put_when_close(component); + snd_soc_component_module_put_when_close(component, substream, rollback); } return ret; @@ -686,7 +672,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) snd_soc_link_shutdown(substream, 0); - soc_pcm_components_close(substream); + soc_pcm_components_close(substream, 0); snd_soc_dapm_stream_stop(rtd, substream->stream); @@ -817,7 +803,7 @@ config_err: snd_soc_link_shutdown(substream, 1); rtd_startup_err: - soc_pcm_components_close(substream); + soc_pcm_components_close(substream, 1); component_err: mutex_unlock(&rtd->card->pcm_mutex); |