[PATCH AUTOSEL 5.15 29/41] mips: ralink: Fix refcount leak in of.c

Sasha Levin
2022-06-28T02:24:16Z

From: Liang He <windhl@126.com>

[ Upstream commit 48ca54e39173d1ed4c4dc8cf045484014bb26eaf ]

In plat_of_remap_node(), plat_of_remap_node() will return a node
pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/ralink/of.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 0135376c5de5..147ebca6ecbe 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -40,6 +40,8 @@ __iomem void *plat_of_remap_node(const char *node)
if (of_address_to_resource(np, 0, &res))
panic("Failed to get resource for %s", node);

+ of_node_put(np);
+
if (!request_mem_region(res.start,
resource_size(&res),
res.name))
--
2.35.1