Patch "ALSA: hda: Do disconnect jacks at codec unbind" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    ALSA: hda: Do disconnect jacks at codec unbind

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-hda-do-disconnect-jacks-at-codec-unbind.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 0baa5de622c98f8ed22de8ccd1474a17574ca94a
Author: Takashi Iwai <tiwai@xxxxxxx>
Date:   Wed Nov 17 14:30:40 2021 +0100

    ALSA: hda: Do disconnect jacks at codec unbind
    
    [ Upstream commit 37c4fd0db7c961145d9d1909ecab386fdf703c26 ]
    
    The HD-audio codec driver remove may happen also at dynamically
    unbinding during operation, hence it needs manual triggers of
    snd_device_disconnect() calls, while it's missing for the jack objects
    that are associated with the codec.
    
    This patch adds the manual disconnection call for jacks when the
    remove happens without card->shutdown (i.e. not under the full
    removal).
    
    Link: https://lore.kernel.org/r/20211117133040.20272-1-tiwai@xxxxxxx
    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
    Stable-dep-of: ead3d3c5b54f ("ALSA: hda: Fix hang at HD-audio codec unbinding due to refcount saturation")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c
index 7153bd53e189..c572fb5886d5 100644
--- a/sound/pci/hda/hda_bind.c
+++ b/sound/pci/hda/hda_bind.c
@@ -14,6 +14,7 @@
 #include <sound/core.h>
 #include <sound/hda_codec.h>
 #include "hda_local.h"
+#include "hda_jack.h"
 
 /*
  * find a matching codec id
@@ -158,6 +159,7 @@ static int hda_codec_driver_remove(struct device *dev)
 
 	refcount_dec(&codec->pcm_ref);
 	snd_hda_codec_disconnect_pcms(codec);
+	snd_hda_jack_tbl_disconnect(codec);
 	wait_event(codec->remove_sleep, !refcount_read(&codec->pcm_ref));
 	snd_power_sync_ref(codec->bus->card);
 
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index f29975e3e98d..7d7786df60ea 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -158,6 +158,17 @@ snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid, int dev_id)
 	return jack;
 }
 
+void snd_hda_jack_tbl_disconnect(struct hda_codec *codec)
+{
+	struct hda_jack_tbl *jack = codec->jacktbl.list;
+	int i;
+
+	for (i = 0; i < codec->jacktbl.used; i++, jack++) {
+		if (!codec->bus->shutdown && jack->jack)
+			snd_device_disconnect(codec->card, jack->jack);
+	}
+}
+
 void snd_hda_jack_tbl_clear(struct hda_codec *codec)
 {
 	struct hda_jack_tbl *jack = codec->jacktbl.list;
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
index 2abf7aac243a..ff7d289c034b 100644
--- a/sound/pci/hda/hda_jack.h
+++ b/sound/pci/hda/hda_jack.h
@@ -69,6 +69,7 @@ struct hda_jack_tbl *
 snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec,
 			      unsigned char tag, int dev_id);
 
+void snd_hda_jack_tbl_disconnect(struct hda_codec *codec);
 void snd_hda_jack_tbl_clear(struct hda_codec *codec);
 
 void snd_hda_jack_set_dirty_all(struct hda_codec *codec);