From: Liang He windhl@126.com
[ 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@126.com Acked-by: Viresh Kumar viresh.kumar@linaro.org Link: https://lore.kernel.org/r/20220616093027.3984903-1-windhl@126.com' Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Sasha Levin sashal@kernel.org --- 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); }