[PATCH] bus: vexpress-config: Fix device node reference leak in probe

[Felix Gu]

In vexpress_syscfg_probe(), of_parse_phandle() is called inside a loop
but the returned device_node reference is never released.
Fix this by using the __free(device_node) cleanup handler to automatically
release the reference when the variable goes out of scope.

Fixes: a5a38765ac79b ("bus: vexpress-config: simplify config bus probing")
Signed-off-by: Felix Gu <ustc.gu at gmail.com>
---
 drivers/bus/vexpress-config.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/bus/vexpress-config.c b/drivers/bus/vexpress-config.c
index 64ee920721ee..a1fa583e9f5d 100644
--- a/drivers/bus/vexpress-config.c
+++ b/drivers/bus/vexpress-config.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2014 ARM Limited
  */
 
+#include <linux/cleanup.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -390,9 +391,8 @@ static int vexpress_syscfg_probe(struct platform_device *pdev)
 	}
 
 	for_each_compatible_node(node, NULL, "arm,vexpress,config-bus") {
-		struct device_node *bridge_np;
-
-		bridge_np = of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
+		struct device_node *bridge_np __free(device_node) =
+			of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
 		if (bridge_np != pdev->dev.parent->of_node)
 			continue;
 

---
base-commit: 053966c344dbd346e71305f530e91ea77916189f
change-id: 20260122-b4-vexpress-config-1d2051861d93

Best regards,
-- 
Felix Gu <ustc.gu at gmail.com>