From: Miaoqian Lin <linmq006@gmail.com> stable inclusion from stable-v5.10.137 commit 941ef6997f9db704fe4fd62fc01e420fdd5048b2 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I60PLB Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 77087a04c8fd554134bddcb8a9ff87b21f357926 ] of_find_matching_node() 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: b0afd44bc192 ("mtd: physmap_of: add a hook for Versatile write protection") 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/20220523143255.4376-1-linmq006@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: Wei Li <liwei391@huawei.com> --- drivers/mtd/maps/physmap-versatile.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/maps/physmap-versatile.c b/drivers/mtd/maps/physmap-versatile.c index 297a50957356..a1b8b7b25f88 100644 --- a/drivers/mtd/maps/physmap-versatile.c +++ b/drivers/mtd/maps/physmap-versatile.c @@ -93,6 +93,7 @@ static int ap_flash_init(struct platform_device *pdev) return -ENODEV; } ebi_base = of_iomap(ebi, 0); + of_node_put(ebi); if (!ebi_base) return -ENODEV; -- 2.20.1