[PATCH 4.9 12/30] arm: mach-spear: Add missing of_node_put() in time.c

[Greg Kroah-Hartman]

From: Liang He <windhl@xxxxxxx>

[ Upstream commit 2c629dd2d14fd7f64a553f809eda6d0b3a4f615a ]

In spear_setup_of_timer(), of_find_matching_node() will return a
node pointer with refcount incrementd. We should use of_node_put()
in each fail path or when it is not used anymore.

Signed-off-by: Liang He <windhl@xxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220616093027.3984903-1-windhl@xxxxxxx'
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm/mach-spear/time.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
index aaaa6781b9fe..57b77c7effa9 100644
--- a/arch/arm/mach-spear/time.c
+++ b/arch/arm/mach-spear/time.c
@@ -223,13 +223,13 @@ void __init spear_setup_of_timer(void)
 	irq = irq_of_parse_and_map(np, 0);
 	if (!irq) {
 		pr_err("%s: No irq passed for timer via DT\n", __func__);
-		return;
+		goto err_put_np;
 	}
 
 	gpt_base = of_iomap(np, 0);
 	if (!gpt_base) {
 		pr_err("%s: of iomap failed\n", __func__);
-		return;
+		goto err_put_np;
 	}
 
 	gpt_clk = clk_get_sys("gpt0", NULL);
@@ -244,6 +244,8 @@ void __init spear_setup_of_timer(void)
 		goto err_prepare_enable_clk;
 	}
 
+	of_node_put(np);
+
 	spear_clockevent_init(irq);
 	spear_clocksource_init();
 
@@ -253,4 +255,6 @@ void __init spear_setup_of_timer(void)
 	clk_put(gpt_clk);
 err_iomap:
 	iounmap(gpt_base);
+err_put_np:
+	of_node_put(np);
 }
-- 
2.35.1