This is a note to let you know that I've just added the patch titled
ASoC: SOF: Intel: hda-codec: fix possible memory leak in hda_codec_device_init()
to the 6.0-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:
asoc-sof-intel-hda-codec-fix-possible-memory-leak-in-hda_codec_device_init.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e9441675edc1bb8dbfadacf68aafacca60d65a25 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date: Thu, 20 Oct 2022 19:01:57 +0800
Subject: ASoC: SOF: Intel: hda-codec: fix possible memory leak in hda_codec_device_init()
From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
commit e9441675edc1bb8dbfadacf68aafacca60d65a25 upstream.
If snd_hdac_device_register() fails, 'codec' and name allocated in
dev_set_name() called in snd_hdac_device_init() are leaked. Fix this
by calling put_device(), so they can be freed in snd_hda_codec_dev_release()
and kobject_cleanup().
Fixes: 829c67319806 ("ASoC: SOF: Intel: Introduce HDA codec init and exit routines")
Fixes: dfe66a18780d ("ALSA: hdac_ext: add extended HDA bus")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20221020110157.1450191-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/sof/intel/hda-codec.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
--- a/sound/soc/sof/intel/hda-codec.c
+++ b/sound/soc/sof/intel/hda-codec.c
@@ -109,11 +109,6 @@ EXPORT_SYMBOL_NS(hda_codec_jack_check, S
#define is_generic_config(x) 0
#endif
-static void hda_codec_device_exit(struct device *dev)
-{
- snd_hdac_device_exit(dev_to_hdac_dev(dev));
-}
-
static struct hda_codec *hda_codec_device_init(struct hdac_bus *bus, int addr, int type)
{
struct hda_codec *codec;
@@ -126,12 +121,11 @@ static struct hda_codec *hda_codec_devic
}
codec->core.type = type;
- codec->core.dev.release = hda_codec_device_exit;
ret = snd_hdac_device_register(&codec->core);
if (ret) {
dev_err(bus->dev, "failed to register hdac device\n");
- snd_hdac_device_exit(&codec->core);
+ put_device(&codec->core.dev);
return ERR_PTR(ret);
}
Patches currently in stable-queue which might be from yangyingliang@xxxxxxxxxx are
queue-6.0/drivers-hv-vmbus-fix-possible-memory-leak-in-vmbus_d.patch
queue-6.0/bnx2x-fix-pci-device-refcount-leak-in-bnx2x_vf_is_pc.patch
queue-6.0/net-pch_gbe-fix-pci-device-refcount-leak-while-modul.patch
queue-6.0/regulator-rt5759-fix-oob-in-validate_desc.patch
queue-6.0/octeontx2-af-debugsfs-fix-pci-device-refcount-leak.patch
queue-6.0/regulator-core-fix-uaf-in-destroy_regulator.patch
queue-6.0/drivers-hv-vmbus-fix-double-free-in-the-error-path-o.patch
queue-6.0/asoc-sof-intel-hda-codec-fix-possible-memory-leak-in-hda_codec_device_init.patch
queue-6.0/tee-optee-fix-possible-memory-leak-in-optee_register.patch
queue-6.0/asoc-intel-skylake-fix-possible-memory-leak-in-skl_codec_device_init.patch
