This is a note to let you know that I've just added the patch titled soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe to the 4.19-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: soc-bcm-brcmstb-pm-pm-arm-fix-refcount-leak-in-brcmstb_pm_probe.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 37d838de369b07b596c19ff3662bf0293fdb09ee Mon Sep 17 00:00:00 2001 From: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Thu, 26 May 2022 11:53:22 +0400 Subject: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe From: Miaoqian Lin <linmq006@xxxxxxxxx> commit 37d838de369b07b596c19ff3662bf0293fdb09ee 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. In brcmstb_init_sram, it pass dn to of_address_to_resource(), of_address_to_resource() will call of_find_device_by_node() to take reference, so we should release the reference returned by of_find_matching_node(). Fixes: 0b741b8234c8 ("soc: bcm: brcmstb: Add support for S2/S3/S5 suspend states (ARM)") Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/soc/bcm/brcmstb/pm/pm-arm.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/soc/bcm/brcmstb/pm/pm-arm.c +++ b/drivers/soc/bcm/brcmstb/pm/pm-arm.c @@ -788,6 +788,7 @@ static int brcmstb_pm_probe(struct platf } ret = brcmstb_init_sram(dn); + of_node_put(dn); if (ret) { pr_err("error setting up SRAM for PM\n"); return ret; Patches currently in stable-queue which might be from linmq006@xxxxxxxxx are queue-4.19/arm-fix-refcount-leak-in-axxia_boot_secondary.patch queue-4.19/arm-cns3xxx-fix-refcount-leak-in-cns3xxx_init.patch queue-4.19/soc-bcm-brcmstb-pm-pm-arm-fix-refcount-leak-in-brcmstb_pm_probe.patch queue-4.19/arm-exynos-fix-refcount-leak-in-exynos_map_pmu.patch