This is a note to let you know that I've just added the patch titled
ALSA: x86: Fix missing spinlock and mutex initializations
to the 4.15-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-x86-fix-missing-spinlock-and-mutex-initializations.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 350144069abf351c743d766b2fba9cb9b7cd32a1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@xxxxxxx>
Date: Wed, 28 Feb 2018 08:36:06 +0100
Subject: ALSA: x86: Fix missing spinlock and mutex initializations
From: Takashi Iwai <tiwai@xxxxxxx>
commit 350144069abf351c743d766b2fba9cb9b7cd32a1 upstream.
The commit change for supporting the multiple ports moved involved
some code shuffling, and there the initializations of spinlock and
mutex in snd_intelhad object were dropped mistakenly.
This patch adds the missing initializations again for each port.
Fixes: b4eb0d522fcb ("ALSA: x86: Split snd_intelhad into card and PCM specific structures")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/x86/intel_hdmi_audio.c | 2 ++
1 file changed, 2 insertions(+)
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1827,6 +1827,8 @@ static int hdmi_lpe_audio_probe(struct p
ctx->port = port;
ctx->pipe = -1;
+ spin_lock_init(&ctx->had_spinlock);
+ mutex_init(&ctx->mutex);
INIT_WORK(&ctx->hdmi_audio_wq, had_audio_wq);
ret = snd_pcm_new(card, INTEL_HAD, port, MAX_PB_STREAMS,
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-4.15/alsa-hda-add-a-power_save-blacklist.patch
queue-4.15/alsa-hda-fix-pincfg-at-resume-on-lenovo-t470-dock.patch
queue-4.15/alsa-x86-fix-missing-spinlock-and-mutex-initializations.patch
queue-4.15/alsa-usb-audio-add-a-quirck-for-b-w-px-headphones.patch
queue-4.15/alsa-control-fix-memory-corruption-risk-in-snd_ctl_elem_read.patch