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-rw-r--r--include/sound/soc.h2
-rw-r--r--sound/soc/soc-core.c21
2 files changed, 13 insertions, 10 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 541ddfaa1243..9952254974b3 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -258,6 +258,8 @@ enum snd_soc_compress_type {
SND_SOC_RBTREE_COMPRESSION
};
+int snd_soc_register_card(struct snd_soc_card *card);
+int snd_soc_unregister_card(struct snd_soc_card *card);
int snd_soc_register_platform(struct device *dev,
struct snd_soc_platform_driver *platform_drv);
void snd_soc_unregister_platform(struct device *dev);
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 83057127b2fa..69117b686fdc 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -58,8 +58,6 @@ static LIST_HEAD(dai_list);
static LIST_HEAD(platform_list);
static LIST_HEAD(codec_list);
-static int snd_soc_register_card(struct snd_soc_card *card);
-static int snd_soc_unregister_card(struct snd_soc_card *card);
static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
/*
@@ -1870,6 +1868,13 @@ static int soc_probe(struct platform_device *pdev)
struct snd_soc_card *card = platform_get_drvdata(pdev);
int ret = 0;
+ /*
+ * no card, so machine driver should be registering card
+ * we should not be here in that case so ret error
+ */
+ if (!card)
+ return -EINVAL;
+
/* Bodge while we unpick instantiation */
card->dev = &pdev->dev;
snd_soc_initialize_card_lists(card);
@@ -3105,11 +3110,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
*
* @card: Card to register
*
- * Note that currently this is an internal only function: it will be
- * exposed to machine drivers after further backporting of ASoC v2
- * registration APIs.
*/
-static int snd_soc_register_card(struct snd_soc_card *card)
+int snd_soc_register_card(struct snd_soc_card *card)
{
int i;
@@ -3141,17 +3143,15 @@ static int snd_soc_register_card(struct snd_soc_card *card)
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_register_card);
/**
* snd_soc_unregister_card - Unregister a card with the ASoC core
*
* @card: Card to unregister
*
- * Note that currently this is an internal only function: it will be
- * exposed to machine drivers after further backporting of ASoC v2
- * registration APIs.
*/
-static int snd_soc_unregister_card(struct snd_soc_card *card)
+int snd_soc_unregister_card(struct snd_soc_card *card)
{
if (card->instantiated)
soc_cleanup_card_resources(card);
@@ -3162,6 +3162,7 @@ static int snd_soc_unregister_card(struct snd_soc_card *card)
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
/*
* Simplify DAI link configuration by removing ".-1" from device names
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