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>
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index e19f78b..ac2d7bd 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);
+}