linux-kernel - [PATCH 2/2] soc: apple: sart: drop device reference after lookup

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Message-ID: <20250926143132.6419-3-johan@kernel.org>
Date: Fri, 26 Sep 2025 16:31:32 +0200
From: Johan Hovold <johan@...nel.org>
To: Sven Peter <sven@...nel.org>,
	Janne Grunau <j@...nau.net>
Cc: Neal Gompa <neal@...pa.dev>,
	asahi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan@...nel.org>
Subject: [PATCH 2/2] soc: apple: sart: drop device reference after lookup

Holding a reference to a device does not prevent its driver data from
going away so there is no point in keeping the reference after looking
up the sart device.

Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/soc/apple/sart.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/soc/apple/sart.c b/drivers/soc/apple/sart.c
index afa111736899..6952afc41308 100644
--- a/drivers/soc/apple/sart.c
+++ b/drivers/soc/apple/sart.c
@@ -164,17 +164,11 @@ static int apple_sart_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static void apple_sart_put_device(void *dev)
-{
-	put_device(dev);
-}
-
 struct apple_sart *devm_apple_sart_get(struct device *dev)
 {
 	struct device_node *sart_node;
 	struct platform_device *sart_pdev;
 	struct apple_sart *sart;
-	int ret;
 
 	sart_node = of_parse_phandle(dev->of_node, "apple,sart", 0);
 	if (!sart_node)
@@ -192,14 +186,11 @@ struct apple_sart *devm_apple_sart_get(struct device *dev)
 		return ERR_PTR(-EPROBE_DEFER);
 	}
 
-	ret = devm_add_action_or_reset(dev, apple_sart_put_device,
-				       &sart_pdev->dev);
-	if (ret)
-		return ERR_PTR(ret);
-
 	device_link_add(dev, &sart_pdev->dev,
 			DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_SUPPLIER);
 
+	put_device(&sart_pdev->dev);
+
 	return sart;
 }
 EXPORT_SYMBOL_GPL(devm_apple_sart_get);
-- 
2.49.1