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authorMiaoqian Lin <linmq006@gmail.com>2022-05-23 18:55:13 +0400
committerKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>2022-06-06 10:40:57 +0200
commitc4c79525042a4a7df96b73477feaf232fe44ae81 (patch)
treebb84684858a3a93ef33676ce4e7d29ea136fda7a
parentarm64: dts: exynos: Correct UART clocks on Exynos7885 (diff)
downloadlinux-dev-c4c79525042a4a7df96b73477feaf232fe44ae81.tar.xz
linux-dev-c4c79525042a4a7df96b73477feaf232fe44ae81.zip
ARM: exynos: Fix refcount leak in exynos_map_pmu
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 <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220523145513.12341-1-linmq006@gmail.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
-rw-r--r--arch/arm/mach-exynos/exynos.c1
1 files changed, 1 insertions, 0 deletions
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)