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ARM: exynos: Fix refcount leak in exynos_map_pmu

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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>
This commit is contained in:
Miaoqian Lin 2022-05-23 18:55:13 +04:00 committed by Greg Kroah-Hartman
parent 615907ccc4
commit f9b77a5293
1 changed files with 1 additions and 0 deletions
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arch/arm/mach-exynos/exynos.c
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@ -136,6 +136,7 @@ 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)