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Date: Wed, 29 May 2019 20:07:13 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Wen Yang <wen.yang99@....com.cn>, Florian Fainelli <f.fainelli@...il.com>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will.deacon@....com>, linux-arm-kernel@...ts.infradead.org, Sasha Levin <sashal@...nel.org> Subject: [PATCH 4.9 101/128] arm64: cpu_ops: fix a leaked reference by adding missing of_node_put [ Upstream commit 92606ec9285fb84cd9b5943df23f07d741384bfc ] The call to of_get_next_child returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./arch/arm64/kernel/cpu_ops.c:102:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 69, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yang99@....com.cn> Reviewed-by: Florian Fainelli <f.fainelli@...il.com> Cc: Catalin Marinas <catalin.marinas@....com> Cc: Will Deacon <will.deacon@....com> Cc: linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.kernel.org Signed-off-by: Will Deacon <will.deacon@....com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- arch/arm64/kernel/cpu_ops.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c index e137ceaf5016b..82b465207ed0a 100644 --- a/arch/arm64/kernel/cpu_ops.c +++ b/arch/arm64/kernel/cpu_ops.c @@ -85,6 +85,7 @@ static const char *__init cpu_read_enable_method(int cpu) pr_err("%s: missing enable-method property\n", dn->full_name); } + of_node_put(dn); } else { enable_method = acpi_get_enable_method(cpu); if (!enable_method) { -- 2.20.1
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