ASoC: Add resource managed snd_soc_register_platform()
Simplify error handling and remove repetitive (and rarely executed) code
for unregistration by providing a devm_snd_soc_register_platform()
platform.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c
index 7ac745d..e94aa02 100644
--- a/sound/soc/soc-devres.c
+++ b/sound/soc/soc-devres.c
@@ -52,6 +52,40 @@
}
EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
+static void devm_platform_release(struct device *dev, void *res)
+{
+ snd_soc_unregister_platform(*(struct device **)res);
+}
+
+/**
+ * devm_snd_soc_register_platform - resource managed platform registration
+ * @dev: Device used to manage platform
+ * @platform: platform to register
+ *
+ * Register a platform driver with automatic unregistration when the device is
+ * unregistered.
+ */
+int devm_snd_soc_register_platform(struct device *dev,
+ const struct snd_soc_platform_driver *platform_drv)
+{
+ struct device **ptr;
+ int ret;
+
+ ptr = devres_alloc(devm_platform_release, sizeof(*ptr), GFP_KERNEL);
+ if (!ptr)
+ return -ENOMEM;
+
+ ret = snd_soc_register_platform(dev, platform_drv);
+ if (ret == 0) {
+ *ptr = dev;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return ret;
+}
+
static void devm_card_release(struct device *dev, void *res)
{
snd_soc_unregister_card(*(struct snd_soc_card **)res);