This is a note to let you know that I've just added the patch titled
ARM: exynos: Fix refcount leak in exynos_map_pmu
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-exynos-fix-refcount-leak-in-exynos_map_pmu.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c4c79525042a4a7df96b73477feaf232fe44ae81 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Mon, 23 May 2022 18:55:13 +0400
Subject: ARM: exynos: Fix refcount leak in exynos_map_pmu
From: Miaoqian Lin <linmq006@xxxxxxxxx>
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@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220523145513.12341-1-linmq006@xxxxxxxxx
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-exynos/exynos.c | 1 +
1 file changed, 1 insertion(+)
--- 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)
Patches currently in stable-queue which might be from linmq006@xxxxxxxxx are
queue-5.18/memory-mtk-smi-add-missing-put_device-call-in-mtk_smi_device_link_common.patch
queue-5.18/iio-adc-adi-axi-adc-fix-refcount-leak-in-adi_axi_adc_attach_client.patch
queue-5.18/memory-samsung-exynos5422-dmc-fix-refcount-leak-in-of_get_dram_timings.patch
queue-5.18/arm-fix-refcount-leak-in-axxia_boot_secondary.patch
queue-5.18/drm-msm-mdp4-fix-refcount-leak-in-mdp4_modeset_init_.patch
queue-5.18/arm-cns3xxx-fix-refcount-leak-in-cns3xxx_init.patch
queue-5.18/iio-adc-aspeed-fix-refcount-leak-in-aspeed_adc_set_trim_data.patch
queue-5.18/soc-bcm-brcmstb-pm-pm-arm-fix-refcount-leak-in-brcmstb_pm_probe.patch
queue-5.18/arm-exynos-fix-refcount-leak-in-exynos_map_pmu.patch
