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 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: alsa-x86-fix-missing-spinlock-and-mutex-initializations.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 350144069abf351c743d766b2fba9cb9b7cd32a1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai tiwai@suse.de Date: Wed, 28 Feb 2018 08:36:06 +0100 Subject: ALSA: x86: Fix missing spinlock and mutex initializations
From: Takashi Iwai tiwai@suse.de
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@vger.kernel.org Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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@suse.de are
queue-4.14/alsa-hda-add-a-power_save-blacklist.patch queue-4.14/alsa-hda-fix-pincfg-at-resume-on-lenovo-t470-dock.patch queue-4.14/alsa-x86-fix-missing-spinlock-and-mutex-initializations.patch queue-4.14/alsa-usb-audio-add-a-quirck-for-b-w-px-headphones.patch queue-4.14/alsa-control-fix-memory-corruption-risk-in-snd_ctl_elem_read.patch