ASoC: Free card DAPM context on snd_soc_instantiate_card() error path

Make sure the to free the card DAPM context if snd_soc_instantiate_card()
fails, otherwise the memory allocated for the DAPM widgets is leaked.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-core.c

@@ -1716,6 +1716,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	if (card->remove)
 		card->remove(card);
 
+	snd_soc_dapm_free(&card->dapm);
 	soc_cleanup_card_debugfs(card);
 	snd_card_free(card->snd_card);