[alsa-devel] Applied "ASoC: soc-core: add soc_unbind_dai_link()" to the asoc tree

[Mark Brown]

The patch

   ASoC: soc-core: add soc_unbind_dai_link()

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.5

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From bc7a9091e5b927ecc20dbb3bc07a5a09783fc27b Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Date: Tue, 5 Nov 2019 15:46:25 +0900
Subject: [PATCH] ASoC: soc-core: add soc_unbind_dai_link()

It is easy to read code if it is cleanly using paired function/naming,
like start <-> stop, register <-> unregister, etc, etc.
But, current ALSA SoC code is very random, unbalance, not paired, etc.
It is easy to create bug at the such code, and it will be difficult to
debug.

ALSA SoC has soc_bind_dai_link(), but its paired soc_unbind_dai_link()
is not implemented.
More confusable is that soc_remove_pcm_runtimes() which should be
soc_unbind_dai_link() is implemented without synchronised
to soc_bind_dai_link().

This patch cleanup this unbalance.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>
Link: https://lore.kernel.org/r/877e4e3jni.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/soc-core.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e8ff6f2f58ba..1e8dd19cba24 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -470,14 +470,6 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
 	return NULL;
 }
 
-static void soc_remove_pcm_runtimes(struct snd_soc_card *card)
-{
-	struct snd_soc_pcm_runtime *rtd, *_rtd;
-
-	for_each_card_rtds_safe(card, rtd, _rtd)
-		soc_free_pcm_runtime(rtd);
-}
-
 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 		const char *dai_link)
 {
@@ -1037,6 +1029,16 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card,
 	return 0;
 }
 
+static void soc_unbind_dai_link(struct snd_soc_card *card,
+				struct snd_soc_dai_link *dai_link)
+{
+	struct snd_soc_pcm_runtime *rtd;
+
+	rtd = snd_soc_get_pcm_runtime(card, dai_link->name);
+	if (rtd)
+		soc_free_pcm_runtime(rtd);
+}
+
 static int soc_bind_dai_link(struct snd_soc_card *card,
 	struct snd_soc_dai_link *dai_link)
 {
@@ -1466,6 +1468,8 @@ void snd_soc_remove_dai_link(struct snd_soc_card *card,
 		card->remove_dai_link(card, dai_link);
 
 	list_del(&dai_link->list);
+
+	soc_unbind_dai_link(card, dai_link);
 }
 EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link);
 
@@ -1974,8 +1978,6 @@ static void soc_cleanup_card_resources(struct snd_soc_card *card)
 	for_each_card_links_safe(card, link, _link)
 		snd_soc_remove_dai_link(card, link);
 
-	soc_remove_pcm_runtimes(card);
-
 	/* remove auxiliary devices */
 	soc_remove_aux_devices(card);
 	soc_unbind_aux_dev(card);
-- 
2.20.1