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From:   Takashi Iwai <tiwai@suse.de>
To:     stable@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Sasha Levin <sashal@kernel.org>, linux-kernel@vger.kernel.org
Subject: [PATCH 6.0.y] Revert "ALSA: hda: Fix page fault in snd_hda_codec_shutdown()"
Date:   Mon, 24 Oct 2022 16:39:31 +0200
Message-Id: <20221024143931.15722-1-tiwai@suse.de>
MIME-Version: 1.0
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Precedence: bulk

This reverts commit 7494e2e6c55ed192f2b91c821fd6832744ba8741.

Which was upstream commit f2bd1c5ae2cb0cf9525c9bffc0038c12dd7e1338.

The patch caused a regression leading to the missing HD-audio device
with ASoC SOF driver.  It was a part of large series and backporting
it alone breaks things while backporting the whole is too intrusive
as stable changes.  And, the issue the patch tries to address is a
corner case, hence it's better to revert.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216613
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
It's only for 6.0.y; 6.1-rc is fine

 sound/pci/hda/hda_codec.c | 41 ++++++++++++++++++++-------------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 4ae8b9574778..384426d7e9dd 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -931,28 +931,8 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
 	}
 
 	codec->bus = bus;
-	codec->depop_delay = -1;
-	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
-	codec->core.dev.release = snd_hda_codec_dev_release;
-	codec->core.exec_verb = codec_exec_verb;
 	codec->core.type = HDA_DEV_LEGACY;
 
-	mutex_init(&codec->spdif_mutex);
-	mutex_init(&codec->control_mutex);
-	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
-	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
-	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
-	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
-	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
-	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
-	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
-	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
-	INIT_LIST_HEAD(&codec->conn_list);
-	INIT_LIST_HEAD(&codec->pcm_list_head);
-	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
-	refcount_set(&codec->pcm_ref, 1);
-	init_waitqueue_head(&codec->remove_sleep);
-
 	return codec;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_device_init);
@@ -1005,8 +985,29 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
 	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 		return -EINVAL;
 
+	codec->core.dev.release = snd_hda_codec_dev_release;
+	codec->core.exec_verb = codec_exec_verb;
+
 	codec->card = card;
 	codec->addr = codec_addr;
+	mutex_init(&codec->spdif_mutex);
+	mutex_init(&codec->control_mutex);
+	snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
+	snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
+	snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
+	snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
+	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
+	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
+	snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
+	snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
+	INIT_LIST_HEAD(&codec->conn_list);
+	INIT_LIST_HEAD(&codec->pcm_list_head);
+	refcount_set(&codec->pcm_ref, 1);
+	init_waitqueue_head(&codec->remove_sleep);
+
+	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
+	codec->depop_delay = -1;
+	codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
 
 #ifdef CONFIG_PM
 	codec->power_jiffies = jiffies;
-- 
2.35.3