linux-kernel - [PATCH] ASoC: codecs: pm4125: clean up bind() device reference handling

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Message-ID: <20251219142412.19043-1-johan@kernel.org>
Date: Fri, 19 Dec 2025 15:24:12 +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-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan@...nel.org>,
	Ma Ke <make24@...as.ac.cn>
Subject: [PATCH] ASoC: codecs: pm4125: clean up bind() device reference handling

A recent change fixed a couple of device leaks on component bind failure
and on unbind but did so in a confusing way by adding misleading
initialisations at bind() and bogus NULL checks at unbind().

Cc: Ma Ke <make24@...as.ac.cn>
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 sound/soc/codecs/pm4125.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/pm4125.c b/sound/soc/codecs/pm4125.c
index 8bc3b9994019..43dcafff6c77 100644
--- a/sound/soc/codecs/pm4125.c
+++ b/sound/soc/codecs/pm4125.c
@@ -1505,10 +1505,6 @@ static int pm4125_bind(struct device *dev)
 	struct device_link *devlink;
 	int ret;
 
-	/* Initialize device pointers to NULL for safe cleanup */
-	pm4125->rxdev = NULL;
-	pm4125->txdev = NULL;
-
 	/* Give the soundwire subdevices some more time to settle */
 	usleep_range(15000, 15010);
 
@@ -1624,11 +1620,8 @@ static void pm4125_unbind(struct device *dev)
 	device_link_remove(dev, pm4125->rxdev);
 	device_link_remove(pm4125->rxdev, pm4125->txdev);
 
-	/* Release device references acquired in bind */
-	if (pm4125->txdev)
-		put_device(pm4125->txdev);
-	if (pm4125->rxdev)
-		put_device(pm4125->rxdev);
+	put_device(pm4125->txdev);
+	put_device(pm4125->rxdev);
 
 	component_unbind_all(dev, pm4125);
 }
-- 
2.51.2