[PATCH v2 05/25] ASoC: soc.h: add snd_soc_card_is_instantiated() helper

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

ASoC framework/driver checks whether card was instantiated every
where. Then, it should check card pointer too in such case.
This patch adds snd_soc_card_is_instantiated() for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Reviewed-by: Charles Keepax <ckeepax at opensource.cirrus.com>
---
 include/sound/soc.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 37bbfc8b45cb..e58b43b5da7c 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1052,6 +1052,12 @@ struct snd_soc_card {
 #define for_each_card_widgets_safe(card, w, _w)	\
 	list_for_each_entry_safe(w, _w, &card->widgets, list)
 
+
+static inline int snd_soc_card_is_instantiated(struct snd_soc_card *card)
+{
+	return card && card->instantiated;
+}
+
 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
 struct snd_soc_pcm_runtime {
 	struct device *dev;
-- 
2.25.1