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ASoC: Intel: Skylake: fix possible memory leak in skl_codec_device_init()

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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: e4746d94d00c ("ASoC: Intel: Skylake: Introduce HDA codec init and exit routines")
Fixes: dfe66a18780d ("ALSA: hdac_ext: add extended HDA bus")
Suggested-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20221021123849.456857-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yang Yingliang 2022-10-21 20:38:48 +08:00 committed by Mark Brown
parent e9ec88a2a6
commit 0aa60ddc21
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GPG Key ID: 24D68B725D5487D0
1 changed files with 1 additions and 7 deletions
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8
sound/soc/intel/skylake/skl.c
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@ -680,11 +680,6 @@ static void load_codec_module(struct hda_codec *codec)
#endif /* CONFIG_SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC */
static void skl_codec_device_exit(struct device *dev)
{
snd_hdac_device_exit(dev_to_hdac_dev(dev));
}
static struct hda_codec *skl_codec_device_init(struct hdac_bus *bus, int addr)
{
struct hda_codec *codec;
@ -697,12 +692,11 @@ static struct hda_codec *skl_codec_device_init(struct hdac_bus *bus, int addr)
}
codec->core.type = HDA_DEV_ASOC;
codec->core.dev.release = skl_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);
}