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ASoC: SOF: Intel: hda-codec: fix possible memory leak in hda_codec_device_init() 

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: 829c673198 ("ASoC: SOF: Intel: Introduce HDA codec init and exit routines")
Fixes: dfe66a1878 ("ALSA: hdac_ext: add extended HDA bus")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20221020110157.1450191-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yang Yingliang 2022-10-20 19:01:57 +08:00 committed by Mark Brown
parent a75481fa00
commit e9441675ed
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 1 additions and 7 deletions
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8
sound/soc/sof/intel/hda-codec.c
View File

@ -109,11 +109,6 @@ EXPORT_SYMBOL_NS(hda_codec_jack_check, SND_SOC_SOF_HDA_AUDIO_CODEC);
#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_device_init(struct hdac_bus *bus, int addr, i
}
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);
}