ALSA: hda: Disable jack polling at shutdown

Although the jack polling is canceled at shutdown in
snd_hda_codec_shutdown(), it might be still re-triggered when the work
is being processed at cancel_delayed_work_sync() call.  This may
result in the unexpected hardware access that should have been already
disabled.

For assuring to stop the jack polling, clear codec->jackpoll_interval
at shutdown.

Reported-by: Joakim Zhang <joakim.zhang@cixtech.com>
Closes: https://lore.kernel.org/20250619020844.2974160-4-joakim.zhang@cixtech.com
Tested-by: Joakim Zhang <joakim.zhang@cixtech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250623131437.10670-2-tiwai@suse.de

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index c018beeecd3d601a8f63c71cd473c538dba5c097..4eba3970cd1a759b9d0e6d907ae1541f3aca8f24 100644 (file)
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3020,6 +3020,7 @@ void snd_hda_codec_shutdown(struct hda_codec *codec)
        if (!codec->core.registered)
                return;
 
+       codec->jackpoll_interval = 0; /* don't poll any longer */
        cancel_delayed_work_sync(&codec->jackpoll_work);
        list_for_each_entry(cpcm, &codec->pcm_list_head, list)
                snd_pcm_suspend_all(cpcm->pcm);