arm: mach-spear: Add missing of_node_put() in time.c

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>

diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
index d1fdb60..c7c17c0 100644 (file)
--- a/arch/arm/mach-spear/time.c
+++ b/arch/arm/mach-spear/time.c
@@ -218,13 +218,13 @@ 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);
@@ -239,6 +239,8 @@ void __init spear_setup_of_timer(void)
                goto err_prepare_enable_clk;
        }
 
+       of_node_put(np);
+
        spear_clockevent_init(irq);
        spear_clocksource_init();
 
@@ -248,4 +250,6 @@ err_prepare_enable_clk:
        clk_put(gpt_clk);
 err_iomap:
        iounmap(gpt_base);
+err_put_np:
+       of_node_put(np);
 }