This is a note to let you know that I've just added the patch titled
ALSA: hda - Fix NULL dereference with CONFIG_SND_DYNAMIC_MINORS=n
to the 3.10-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-fix-null-dereference-with-config_snd_dynamic_minors-n.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2ca320e294a738c9134a71b5029de05edbfc7aad Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@xxxxxxx>
Date: Thu, 22 Aug 2013 09:55:36 +0200
Subject: ALSA: hda - Fix NULL dereference with CONFIG_SND_DYNAMIC_MINORS=n
From: Takashi Iwai <tiwai@xxxxxxx>
commit 2ca320e294a738c9134a71b5029de05edbfc7aad upstream.
Without the dynamic minor assignment, HDMI codec may have less PCM
instances than the number of pins, which eventually leads to Oops.
Reported-by: Stratos Karafotis <stratosk@xxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/hda/patch_hdmi.c | 3 +++
1 file changed, 3 insertions(+)
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1715,6 +1715,9 @@ static int generic_hdmi_build_controls(s
struct snd_pcm_chmap *chmap;
struct snd_kcontrol *kctl;
int i;
+
+ if (!codec->pcm_info[pin_idx].pcm)
+ break;
err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm,
SNDRV_PCM_STREAM_PLAYBACK,
NULL, 0, pin_idx, &chmap);
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-3.10/alsa-hda-add-inverted-digital-mic-fixup-for-acer-aspire-one.patch
queue-3.10/alsa-hda-fix-null-dereference-with-config_snd_dynamic_minors-n.patch
queue-3.10/alsa-opti9xx-fix-conflicting-driver-object-name.patch
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