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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-05-23 18:55:13 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-29 09:04:42 +0200 |
| commit | fc354856e9fad9cd36e2ad28f9da70716025055a (patch) | |
| tree | 01cc9c963df9904b32ecefb2346233982169c22e | |
| parent | a1af53239ad3f13267ab9893fe8835b24be72384 (diff) | |
| download | linux-fc354856e9fad9cd36e2ad28f9da70716025055a.tar.gz linux-fc354856e9fad9cd36e2ad28f9da70716025055a.tar.bz2 linux-fc354856e9fad9cd36e2ad28f9da70716025055a.zip | |
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 <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220523145513.12341-1-linmq006@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm/mach-exynos/exynos.c | 1 |
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) |