From d1ff2559cef0f6f8d97fba6337b28adb10689e16 Mon Sep 17 00:00:00 2001

From: Miaoqian Lin <linmq006@gmail.com>

Date: Sun, 5 Jun 2022 12:28:07 +0400

Subject: [PATCH] cpufreq: zynq: Fix refcount leak in zynq_get_revision

Git-commit: d1ff2559cef0f6f8d97fba6337b28adb10689e16

Patch-mainline: v6.0-rc1

References: git-fixes

of_find_compatible_node() returns a node pointer with refcount

incremented, we should use of_node_put() on it when done.

Add missing of_node_put() to avoid refcount leak.

Fixes: 00f7dc636366 ("ARM: zynq: Add support for SOC_BUS")

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>

Link: https://lore.kernel.org/r/20220605082807.21526-1-linmq006@gmail.com

Signed-off-by: Michal Simek <michal.simek@amd.com>

Acked-by: Takashi Iwai <tiwai@suse.de>

---

 arch/arm/mach-zynq/common.c | 1 +

 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c

index e1ca6a5732d2..15e8a321a713 100644

--- a/arch/arm/mach-zynq/common.c

+++ b/arch/arm/mach-zynq/common.c

@@ -77,6 +77,7 @@ static int __init zynq_get_revision(void)

 	}

 	zynq_devcfg_base = of_iomap(np, 0);

+	of_node_put(np);

 	if (!zynq_devcfg_base) {

 		pr_err("%s: Unable to map I/O memory\n", __func__);

 		return -1;

-- 

2.35.3