ARM: versatile: fix OF node leak in CPUs prepare

[ Upstream commit f2642d97f2105ed17b2ece0c597450f2ff95d704 ]

Machine code is leaking OF node reference from of_find_matching_node()
in realview_smp_prepare_cpus().

Fixes: 5420b4b15617 ("ARM: realview: add an DT SMP boot method")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/20240826054934.10724-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/mach-versatile/platsmp-realview.c b/arch/arm/mach-versatile/platsmp-realview.c
index 6965a1de727b07fbd3626bd4c984ccc7e720c5bc..d38b2e174257e8e673950de9aaf57a124c089292 100644 (file)
--- a/arch/arm/mach-versatile/platsmp-realview.c
+++ b/arch/arm/mach-versatile/platsmp-realview.c
@@ -70,6 +70,7 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus)
                return;
        }
        map = syscon_node_to_regmap(np);
+       of_node_put(np);
        if (IS_ERR(map)) {
                pr_err("PLATSMP: No syscon regmap\n");
                return;