linux-kernel - [PATCH] ASoC: codec: rt286: Use devm_request_threaded_irq to manage IRQ lifetime and fix smatch warning

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Message-ID: <20251217054458.38257-2-hariconscious@gmail.com>
Date: Wed, 17 Dec 2025 11:14:59 +0530
From: hariconscious@...il.com
To: oder_chiou@...ltek.com,
	lgirdwood@...il.com,
	broonie@...nel.org
Cc: perex@...ex.cz,
	tiwai@...e.com,
	khalid@...nel.org,
	shuah@...nel.org,
	david.hunter.linux@...il.com,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	HariKrishna Sagala <hariconscious@...il.com>
Subject: [PATCH] ASoC: codec: rt286: Use devm_request_threaded_irq to manage IRQ lifetime and fix smatch warning

From: HariKrishna Sagala <hariconscious@...il.com>

Replace manual "request_threaded_irq()" with the device managed
"devm_request_threaded_irq" to manage the IRQ lifetime and also
it removes the smatch reported warning.
Remove the manual "free_irq()" in the "remove" function as free_irq
is tied to device teardown.

Signed-off-by: HariKrishna Sagala <hariconscious@...il.com>
---
This patch replaces the manual management of IRQ with the device
managed IRQ API. Also, it removes the smatch reported warning.

sound/soc/codecs/rt286.c:1252 rt286_i2c_probe() warn: 'rt286->i2c->irq'
from request_threaded_irq() not released on lines: 1252.

Removed the "remove" function as IRQ is managed automatically.

Thank you.

 sound/soc/codecs/rt286.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index 2fbb5860c421..195658f626cc 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -1236,7 +1236,7 @@ static int rt286_i2c_probe(struct i2c_client *i2c)
 	}
 
 	if (rt286->i2c->irq) {
-		ret = request_threaded_irq(rt286->i2c->irq, NULL, rt286_irq,
+		ret = devm_request_threaded_irq(&rt286->i2c->dev, rt286->i2c->irq, NULL, rt286_irq,
 			IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt286", rt286);
 		if (ret != 0) {
 			dev_err(&i2c->dev,
@@ -1252,22 +1252,12 @@ static int rt286_i2c_probe(struct i2c_client *i2c)
 	return ret;
 }
 
-static void rt286_i2c_remove(struct i2c_client *i2c)
-{
-	struct rt286_priv *rt286 = i2c_get_clientdata(i2c);
-
-	if (i2c->irq)
-		free_irq(i2c->irq, rt286);
-}
-
-
 static struct i2c_driver rt286_i2c_driver = {
 	.driver = {
 		   .name = "rt286",
 		   .acpi_match_table = ACPI_PTR(rt286_acpi_match),
 		   },
 	.probe = rt286_i2c_probe,
-	.remove = rt286_i2c_remove,
 	.id_table = rt286_i2c_id,
 };
 

base-commit: ea1013c1539270e372fc99854bc6e4d94eaeff66
-- 
2.43.0