linux-kernel - [PATCH] ASoC: codecs: wcd939x: fix regmap leak on probe failure

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Message-ID: <20251127135057.2216-1-johan@kernel.org>
Date: Thu, 27 Nov 2025 14:50:57 +0100
From: Johan Hovold <johan@...nel.org>
To: Srinivas Kandagatla <srini@...nel.org>,
	Mark Brown <broonie@...nel.org>
Cc: Liam Girdwood <lgirdwood@...il.com>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan@...nel.org>,
	stable@...r.kernel.org,
	Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH] ASoC: codecs: wcd939x: fix regmap leak on probe failure

The soundwire regmap that may be allocated during probe is not freed on
late probe failures.

Add the missing error handling.

Fixes: be2af391cea0 ("ASoC: codecs: Add WCD939x Soundwire devices driver")
Cc: stable@...r.kernel.org	# 6.9
Cc: Neil Armstrong <neil.armstrong@...aro.org>
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 sound/soc/codecs/wcd939x-sdw.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index d369100a2457..da342a0c95a5 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -1400,12 +1400,18 @@ static int wcd9390_probe(struct sdw_slave *pdev, const struct sdw_device_id *id)
 
 	ret = component_add(dev, &wcd_sdw_component_ops);
 	if (ret)
-		return ret;
+		goto err_free_regmap;
 
 	/* Set suspended until aggregate device is bind */
 	pm_runtime_set_suspended(dev);
 
 	return 0;
+
+err_free_regmap:
+	if (wcd->regmap)
+		regmap_exit(wcd->regmap);
+
+	return ret;
 }
 
 static int wcd9390_remove(struct sdw_slave *pdev)
-- 
2.51.2