When mutex_lock_interruptible() fails, a pairing PM usage counter decrement is needed to keep the counter balanced.
Signed-off-by: Dinghao Liu <[email protected]> --- drivers/input/mouse/cyapa.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c index 77cc653edca2..e411ab45a218 100644 --- a/drivers/input/mouse/cyapa.c +++ b/drivers/input/mouse/cyapa.c @@ -904,8 +904,10 @@ static ssize_t cyapa_update_rt_suspend_scanrate(struct device *dev, pm_runtime_get_sync(dev); error = mutex_lock_interruptible(&cyapa->state_sync_lock); - if (error) + if (error) { + pm_runtime_put_noidle(dev); return error; + } cyapa->runtime_suspend_sleep_time = min_t(u16, time, 1000); cyapa->runtime_suspend_power_mode = -- 2.17.1
