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authorYang Yingliang <yangyingliang@huawei.com>2022-10-20 14:01:57 +0300
committerMark Brown <broonie@kernel.org>2022-10-21 15:04:14 +0300
commite9441675edc1bb8dbfadacf68aafacca60d65a25 (patch)
treebf3fecf8751d802af7a9e69338cb771e5292708e /sound
parenta75481fa00cc06a8763e1795b93140407948c03a (diff)
downloadlinux-e9441675edc1bb8dbfadacf68aafacca60d65a25.tar.xz
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: 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@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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/sof/intel/hda-codec.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
index 1e9afc48394c..f2ec2a6c2e0f 100644
--- 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, 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);
}