diff options
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); +} |