[PATCH 5.18 0564/1095] mtd: partitions: Fix refcount leak in parse_redboot_of

Greg Kroah-Hartman
2022-08-15T21:32:04Z

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 9f7e62815cf3cbbcb1b8cb21649fb4dfdb3aa016 ]

of_get_child_by_name() 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.

Fixes: 237960880960 ("mtd: partitions: redboot: seek fis-index-block in the right node")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220526110652.64849-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/parsers/redboot.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/parsers/redboot.c b/drivers/mtd/parsers/redboot.c
index feb44a573d44..a16b42a88581 100644
--- a/drivers/mtd/parsers/redboot.c
+++ b/drivers/mtd/parsers/redboot.c
@@ -58,6 +58,7 @@ static void parse_redboot_of(struct mtd_info *master)
return;

ret = of_property_read_u32(npart, "fis-index-block", &dirblock);
+ of_node_put(npart);
if (ret)
return;

--
2.35.1