[PATCH] clocksource/drivers/integrator-ap: add missing of_node_put()

[Yangtao Li]

of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
integrator_ap_timer_init_of() doesn't do that, so fix it.

Signed-off-by: Yangtao Li <tiny.win...@gmail.com>
---
 drivers/clocksource/timer-integrator-ap.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/clocksource/timer-integrator-ap.c 
b/drivers/clocksource/timer-integrator-ap.c
index 76e526f58620..1f04069470bb 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -177,7 +177,7 @@ static int __init integrator_ap_timer_init_of(struct 
device_node *node)
 {
        const char *path;
        void __iomem *base;
-       int err;
+       int err,rc = 0;
        int irq;
        struct clk *clk;
        unsigned long rate;
@@ -210,26 +210,34 @@ static int __init integrator_ap_timer_init_of(struct 
device_node *node)
                                "arm,timer-secondary", &path);
        if (err) {
                pr_warn("Failed to read property\n");
-               return err;
+               rc = err;
+               goto out_put_pri_node;
        }
 
 
        sec_node = of_find_node_by_path(path);
 
-       if (node == pri_node)
+       if (node == pri_node){
                /* The primary timer lacks IRQ, use as clocksource */
-               return integrator_clocksource_init(rate, base);
+               rc = integrator_clocksource_init(rate, base);
+               goto out;
+       }
 
        if (node == sec_node) {
                /* The secondary timer will drive the clock event */
                irq = irq_of_parse_and_map(node, 0);
-               return integrator_clockevent_init(rate, base, irq);
+               rc = integrator_clockevent_init(rate, base, irq);
+               goto out;
        }
 
        pr_info("Timer @%p unused\n", base);
        clk_disable_unprepare(clk);
+out:
+       of_node_put(sec_node);
+out_put_pri_node:
+       of_node_put(pri_node);
 
-       return 0;
+       return rc;
 }
 
 TIMER_OF_DECLARE(integrator_ap_timer, "arm,integrator-timer",
-- 
2.17.0