[PATCH 5.16 0591/1017] mips: cdmm: Fix refcount leak in mips_cdmm_phys_base

Greg Kroah-Hartman
2022-04-05T09:51:56Z

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 4528668ca331f7ce5999b7746657b46db5b3b785 ]

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 2121aa3e2312 ("mips: cdmm: Add mti,mips-cdmm dtb node support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/bus/mips_cdmm.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c
index 626dedd110cb..fca0d0669aa9 100644
--- a/drivers/bus/mips_cdmm.c
+++ b/drivers/bus/mips_cdmm.c
@@ -351,6 +351,7 @@ phys_addr_t __weak mips_cdmm_phys_base(void)
np = of_find_compatible_node(NULL, NULL, "mti,mips-cdmm");
if (np) {
err = of_address_to_resource(np, 0, &res);
+ of_node_put(np);
if (!err)
return res.start;
}
--
2.34.1