From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
[ Upstream commit 180d35a7c05d520314a590c99ad8643d0213f28b ]
If clk_get_rate() fails which is called after clk_prepare_enable(),
clk_disable_unprepare() need be called in error path to disable the
clock in dmtimer_systimer_init_clock().
Fixes: 52762fbd1c47 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Tony Lindgren <tony@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20221029114427.946520-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/clocksource/timer-ti-dm-systimer.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c
index 2737407ff069..632523c1232f 100644
--- a/drivers/clocksource/timer-ti-dm-systimer.c
+++ b/drivers/clocksource/timer-ti-dm-systimer.c
@@ -345,8 +345,10 @@ static int __init dmtimer_systimer_init_clock(struct dmtimer_systimer *t,
return error;
r = clk_get_rate(clock);
- if (!r)
+ if (!r) {
+ clk_disable_unprepare(clock);
return -ENODEV;
+ }
if (is_ick)
t->ick = clock;
--
2.35.1
