ASoC: Free the card's DAPM context

Free the card's DAPM context when the card is removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a823654..6a3cb53 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2047,6 +2047,8 @@
 	if (card->remove)
 		card->remove(card);
 
+	snd_soc_dapm_free(&card->dapm);
+
 	kfree(card->rtd);
 	snd_card_free(card->snd_card);
 	return 0;