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path: root/drivers/clocksource/timer-integrator-ap.c
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Diffstat (limited to 'drivers/clocksource/timer-integrator-ap.c')
-rw-r--r--drivers/clocksource/timer-integrator-ap.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index 76e526f58620..19fb7de4b928 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -181,8 +181,7 @@ static int __init integrator_ap_timer_init_of(struct device_node *node)
int irq;
struct clk *clk;
unsigned long rate;
- struct device_node *pri_node;
- struct device_node *sec_node;
+ struct device_node *alias_node;
base = of_io_request_and_map(node, 0, "integrator-timer");
if (IS_ERR(base))
@@ -204,7 +203,18 @@ static int __init integrator_ap_timer_init_of(struct device_node *node)
return err;
}
- pri_node = of_find_node_by_path(path);
+ alias_node = of_find_node_by_path(path);
+
+ /*
+ * The pointer is used as an identifier not as a pointer, we
+ * can drop the refcount on the of__node immediately after
+ * getting it.
+ */
+ of_node_put(alias_node);
+
+ if (node == alias_node)
+ /* The primary timer lacks IRQ, use as clocksource */
+ return integrator_clocksource_init(rate, base);
err = of_property_read_string(of_aliases,
"arm,timer-secondary", &path);
@@ -213,14 +223,11 @@ static int __init integrator_ap_timer_init_of(struct device_node *node)
return err;
}
+ alias_node = of_find_node_by_path(path);
- sec_node = of_find_node_by_path(path);
-
- if (node == pri_node)
- /* The primary timer lacks IRQ, use as clocksource */
- return integrator_clocksource_init(rate, base);
+ of_node_put(alias_node);
- if (node == sec_node) {
+ if (node == alias_node) {
/* The secondary timer will drive the clock event */
irq = irq_of_parse_and_map(node, 0);
return integrator_clockevent_init(rate, base, irq);