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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2019-07-26 07:49:54 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-08-05 18:17:15 +0300 |
| commit | 4a81e8f30d0b422b7f10562952124d719f73b071 (patch) | |
| tree | e0afbd3c1d38e30c26ac87743711b4e5f5d7235d /sound/soc/soc-component.c | |
| parent | 4ff1fef10f353b928bcc9d56d31fda53f2c43191 (diff) | |
| download | linux-4a81e8f30d0b422b7f10562952124d719f73b071.tar.xz | |
ASoC: soc-component: add snd_soc_component_get/put()
ALSA SoC is calling try_module_get()/module_put() based on
component->driver->module_get_upon_open.
To keep simple and readable code, we should create its function.
This patch adds new snd_soc_component_get/put().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h8795ro4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-component.c')
| -rw-r--r-- | sound/soc/soc-component.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index e19f78bfb919..ac2d7bd5d844 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -5,6 +5,7 @@ // Copyright (C) 2019 Renesas Electronics Corp. // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> // +#include <linux/module.h> #include <sound/soc.h> /** @@ -267,3 +268,20 @@ int snd_soc_component_set_jack(struct snd_soc_component *component, return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_component_set_jack); + +int snd_soc_component_module_get(struct snd_soc_component *component, + int upon_open) +{ + if (component->driver->module_get_upon_open == !!upon_open && + !try_module_get(component->dev->driver->owner)) + return -ENODEV; + + return 0; +} + +void snd_soc_component_module_put(struct snd_soc_component *component, + int upon_open) +{ + if (component->driver->module_get_upon_open == !!upon_open) + module_put(component->dev->driver->owner); +} |