linux-kernel - [PATCH v3 06/12] cdx: Simplify with scoped for each OF child loop

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Message-Id: <20260109-of-for-each-compatible-scoped-v3-6-c22fa2c0749a@oss.qualcomm.com>
Date: Fri, 09 Jan 2026 17:57:50 +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 v3 06/12] cdx: 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/cdx/cdx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cdx/cdx.c b/drivers/cdx/cdx.c
index b39af2f1937f..bbde529aaa93 100644
--- a/drivers/cdx/cdx.c
+++ b/drivers/cdx/cdx.c
@@ -608,7 +608,6 @@ static ssize_t rescan_store(const struct bus_type *bus,
 {
 	struct cdx_controller *cdx;
 	struct platform_device *pd;
-	struct device_node *np;
 	bool val;
 
 	if (kstrtobool(buf, &val) < 0)
@@ -623,10 +622,9 @@ static ssize_t rescan_store(const struct bus_type *bus,
 	cdx_unregister_devices(&cdx_bus_type);
 
 	/* Rescan all the devices */
-	for_each_compatible_node(np, NULL, compat_node_name) {
+	for_each_compatible_node_scoped(np, NULL, compat_node_name) {
 		pd = of_find_device_by_node(np);
 		if (!pd) {
-			of_node_put(np);
 			count = -EINVAL;
 			goto unlock;
 		}

-- 
2.51.0