[PATCH AUTOSEL 4.9 07/11] ARM: hisi: Add missing of_node_put after of_find_compatible_node
From: Sasha Levin <sashal@kernel.org>
Date: 2022-06-01 14:14:44
Also in:
lkml, stable
Subsystem:
arm port, arm/hisilicon soc support, the rest · Maintainers:
Russell King, Wei Xu, Linus Torvalds
From: Peng Wu <redacted> [ Upstream commit 9bc72e47d4630d58a840a66a869c56b29554cfe4 ] of_find_compatible_node will increment the refcount of the returned device_node. Calling of_node_put() to avoid the refcount leak Signed-off-by: Peng Wu <redacted> Signed-off-by: Wei Xu <xuwei5@hisilicon.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/arm/mach-hisi/platsmp.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index e1d67648d5d0..fccceab33325 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c@@ -70,14 +70,17 @@ static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus) } ctrl_base = of_iomap(np, 0); if (!ctrl_base) { + of_node_put(np); pr_err("failed to map address\n"); return; } if (of_property_read_u32(np, "smp-offset", &offset) < 0) { + of_node_put(np); pr_err("failed to find smp-offset property\n"); return; } ctrl_base += offset; + of_node_put(np); } }
@@ -163,6 +166,7 @@ static int hip01_boot_secondary(unsigned int cpu, struct task_struct *idle) if (WARN_ON(!node)) return -1; ctrl_base = of_iomap(node, 0); + of_node_put(node); /* set the secondary core boot from DDR */ remap_reg_value = readl_relaxed(ctrl_base + REG_SC_CTRL);
--
2.35.1
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