diff options
| author |   Mark Brown <broonie@linaro.org> | 2013-09-16 18:02:05 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-09-17 00:50:06 +0100 |
| commit | 0e4ff5c806263bf40ee5409ac283b776f0c11e41 (patch) | |
| tree | eda5a0e77010c93620b288ded2b9b1cdff85a977 | |
| parent | ASoC: core: Implement devm_snd_soc_register_component() (diff) | |
| download | linux-dev-0e4ff5c806263bf40ee5409ac283b776f0c11e41.tar.xz linux-dev-0e4ff5c806263bf40ee5409ac283b776f0c11e41.zip | |
ASoC: core: Add devm_snd_soc_register_card()
Simplify error handling and remove repetitive (and rarely executed) code
for unregistration by providing a devm_snd_soc_register() card.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
| -rw-r--r-- | include/sound/soc.h | 1 | ||||
| -rw-r--r-- | sound/soc/soc-devres.c | 34 |
2 files changed, 35 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index b970f019b452..d44728ab2be0 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -369,6 +369,7 @@ int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, int snd_soc_register_card(struct snd_soc_card *card); int snd_soc_unregister_card(struct snd_soc_card *card); +int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card); int snd_soc_suspend(struct device *dev); int snd_soc_resume(struct device *dev); int snd_soc_poweroff(struct device *dev); diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c index 13fe86f7c9a8..b1d732255c02 100644 --- a/sound/soc/soc-devres.c +++ b/sound/soc/soc-devres.c @@ -50,3 +50,37 @@ int devm_snd_soc_register_component(struct device *dev, return ret; } EXPORT_SYMBOL_GPL(devm_snd_soc_register_component); + +static void devm_card_release(struct device *dev, void *res) +{ + snd_soc_unregister_card(*(struct snd_soc_card **)res); +} + +/** + * devm_snd_soc_register_card - resource managed card registration + * @dev: Device used to manage card + * @card: Card to register + * + * Register a card with automatic unregistration when the device is + * unregistered. + */ +int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card) +{ + struct device **ptr; + int ret; + + ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = snd_soc_register_card(card); + if (ret == 0) { + *ptr = dev; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return ret; +} +EXPORT_SYMBOL_GPL(devm_snd_soc_register_card); |