From d23f76018e17618559da9eea179d137362023f95 Mon Sep 17 00:00:00 2001 From: Miaoqian Lin Date: Mon, 23 May 2022 18:55:13 +0400 Subject: [PATCH] ARM: exynos: Fix refcount leak in exynos_map_pmu commit c4c79525042a4a7df96b73477feaf232fe44ae81 upstream. of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. of_node_put() checks null pointer. Fixes: fce9e5bb2526 ("ARM: EXYNOS: Add support for mapping PMU base address via DT") Signed-off-by: Miaoqian Lin Link: https://lore.kernel.org/r/20220523145513.12341-1-linmq006@gmail.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/arm/mach-exynos/exynos.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index 8b48326be9fd..51a247ca4da8 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -149,6 +149,7 @@ static void exynos_map_pmu(void) np = of_find_matching_node(NULL, exynos_dt_pmu_match); if (np) pmu_base_addr = of_iomap(np, 0); + of_node_put(np); } static void __init exynos_init_irq(void)