[PATCH 6.1.y 2/2] ASoC: hdac_hda: Fix hlink refcount leak on component registration failure

[Sasha Levin <sashal@kernel.org>]

From: Haoxiang Li <haoxiang_li2024@163.com>

[ Upstream commit 6ad4892c4f5cb437a928a02f5b7d37d496aa9268 ]

hdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get()
before registering the ASoC component. If component registration fails,
the function returns without dropping the link reference.

Always call snd_hdac_ext_bus_link_put() after the registration attempt so
the reference taken during probe is balanced on both success and failure.

Fixes: 6bae5ea94989 ("ASoC: hdac_hda: add asoc extension for legacy HDA codec drivers")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Link: https://patch.msgid.link/20260622145645.1184986-1-haoxiang_li2024@163.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/hdac_hda.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/soc/codecs/hdac_hda.c b/sound/soc/codecs/hdac_hda.c
index 8ed645a3f2a9b..9c7391f7b9198 100644
--- a/sound/soc/codecs/hdac_hda.c
+++ b/sound/soc/codecs/hdac_hda.c
@@ -616,10 +616,8 @@ static int hdac_hda_dev_probe(struct hdac_device *hdev)
 						&hdac_hda_codec, hdac_hda_dais,
 						ARRAY_SIZE(hdac_hda_dais));
 
-	if (ret < 0) {
+	if (ret < 0)
 		dev_err(&hdev->dev, "%s: failed to register HDA codec %d\n", __func__, ret);
-		return ret;
-	}
 
 	snd_hdac_ext_bus_link_put(hdev->bus, hlink);
 
-- 
2.53.0