linux-kernel - [PATCH v2 2/6] ASoC: aoa: Use helper function for_each_child_of_node

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Message-ID: <20250522050300.519244-3-aichao@kylinos.cn>
Date: Thu, 22 May 2025 13:02:55 +0800
From: Ai Chao <aichao@...inos.cn>
To: perex@...ex.cz,
	tiwai@...e.com,
	johannes@...solutions.net,
	kuninori.morimoto.gx@...esas.com,
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Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-renesas-soc@...r.kernel.org,
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	linux-arm-msm@...r.kernel.org,
	Ai Chao <aichao@...inos.cn>
Subject: [PATCH v2 2/6] ASoC: aoa: Use helper function for_each_child_of_node_scoped()

The for_each_child_of_node_scoped() helper provides a scope-based
clean-up functionality to put the device_node automatically, and
as such, there is no need to call of_node_put() directly.

Thus, use this helper to simplify the code.

Signed-off-by: Ai Chao <aichao@...inos.cn>
---
 sound/aoa/soundbus/i2sbus/core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index ce84288168e4..20a4c5891afc 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -207,6 +207,8 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 			}
 		}
 	}
+	of_node_put(sound);
+
 	/* for the time being, until we can handle non-layout-id
 	 * things in some fabric, refuse to attach if there is no
 	 * layout-id property or we haven't been forced to attach.
@@ -335,7 +337,6 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 
 static int i2sbus_probe(struct macio_dev* dev, const struct of_device_id *match)
 {
-	struct device_node *np;
 	int got = 0, err;
 	struct i2sbus_control *control = NULL;
 
@@ -347,7 +348,7 @@ static int i2sbus_probe(struct macio_dev* dev, const struct of_device_id *match)
 		return -ENODEV;
 	}
 
-	for_each_child_of_node(dev->ofdev.dev.of_node, np) {
+	for_each_child_of_node_scoped(dev->ofdev.dev.of_node, np) {
 		if (of_device_is_compatible(np, "i2sbus") ||
 		    of_device_is_compatible(np, "i2s-modem")) {
 			got += i2sbus_add_dev(dev, control, np);
-- 
2.47.1