From: Miaoqian Lin <linmq006@gmail.com> stable inclusion from stable-v5.10.122 commit 910b1cdf6c50ae8fb222e46657d04fb181577017 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5W6OE Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 5d24df3d690809952528e7a19a43d84bc5b99d44 ] of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() in some error paths. Fixes: bf9006399939 ("watchdog: ts4800: add driver for TS-4800 watchdog") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220511114203.47420-1-linmq006@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: Wei Li <liwei391@huawei.com> --- drivers/watchdog/ts4800_wdt.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/ts4800_wdt.c b/drivers/watchdog/ts4800_wdt.c index c137ad2bd5c3..0ea554c7cda5 100644 --- a/drivers/watchdog/ts4800_wdt.c +++ b/drivers/watchdog/ts4800_wdt.c @@ -125,13 +125,16 @@ static int ts4800_wdt_probe(struct platform_device *pdev) ret = of_property_read_u32_index(np, "syscon", 1, ®); if (ret < 0) { dev_err(dev, "no offset in syscon\n"); + of_node_put(syscon_np); return ret; } /* allocate memory for watchdog struct */ wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL); - if (!wdt) + if (!wdt) { + of_node_put(syscon_np); return -ENOMEM; + } /* set regmap and offset to know where to write */ wdt->feed_offset = reg; -- 2.20.1