linux-kernel - [PATCH v2 09/11] dmaengine: fsl_raid: Simplify with scoped for each OF child loop

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Message-Id: <20260106-of-for-each-compatible-scoped-v2-9-05eb948d91f2@oss.qualcomm.com>
Date: Tue, 06 Jan 2026 10:15:19 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
To: Miguel Ojeda <ojeda@...nel.org>, Rob Herring <robh@...nel.org>,
        Saravana Kannan <saravanak@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
        Bill Wendling <morbo@...gle.com>,
        Justin Stitt <justinstitt@...gle.com>,
        Russell King <linux@...linux.org.uk>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...on.dev>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        "Christophe Leroy (CS GROUP)" <chleroy@...nel.org>,
        Nipun Gupta <nipun.gupta@....com>,
        Nikhil Agarwal <nikhil.agarwal@....com>,
        Abel Vesa <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>, Vinod Koul <vkoul@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        llvm@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-clk@...r.kernel.org, imx@...ts.linux.dev,
        dmaengine@...r.kernel.org, linux-media@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Subject: [PATCH v2 09/11] dmaengine: fsl_raid: Simplify with scoped for
 each OF child loop

Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>

---

Depends on the first patch.
---
 drivers/dma/fsl_raid.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/fsl_raid.c b/drivers/dma/fsl_raid.c
index 6aa97e258a55..6e6d7e0e475e 100644
--- a/drivers/dma/fsl_raid.c
+++ b/drivers/dma/fsl_raid.c
@@ -746,7 +746,6 @@ static int fsl_re_chan_probe(struct platform_device *ofdev,
 static int fsl_re_probe(struct platform_device *ofdev)
 {
 	struct fsl_re_drv_private *re_priv;
-	struct device_node *np;
 	struct device_node *child;
 	u32 off;
 	u8 ridx = 0;
@@ -823,11 +822,10 @@ static int fsl_re_probe(struct platform_device *ofdev)
 	dev_set_drvdata(dev, re_priv);
 
 	/* Parse Device tree to find out the total number of JQs present */
-	for_each_compatible_node(np, NULL, "fsl,raideng-v1.0-job-queue") {
+	for_each_compatible_node_scoped(np, NULL, "fsl,raideng-v1.0-job-queue") {
 		rc = of_property_read_u32(np, "reg", &off);
 		if (rc) {
 			dev_err(dev, "Reg property not found in JQ node\n");
-			of_node_put(np);
 			return -ENODEV;
 		}
 		/* Find out the Job Rings present under each JQ */

-- 
2.51.0