From: Dinghao Liu dinghao.liu@zju.edu.cn
[ Upstream commit a2fa9242e89f27696515699fe0f0296bf1ac1815 ]
When lidar_write_control() fails, a pairing PM usage counter decrement is needed to keep the counter balanced.
Fixes: 4ac4e086fd8c5 ("iio: pulsedlight-lidar-lite: add runtime PM") Signed-off-by: Dinghao Liu dinghao.liu@zju.edu.cn Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.com Link: https://lore.kernel.org/r/20210412053204.4889-1-dinghao.liu@zju.edu.cn Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/proximity/pulsedlight-lidar-lite-v2.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c index 36c1ddc251aa..c033db701bb5 100644 --- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c +++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c @@ -166,6 +166,7 @@ static int lidar_get_measurement(struct lidar_data *data, u16 *reg) ret = lidar_write_control(data, LIDAR_REG_CONTROL_ACQUIRE); if (ret < 0) { dev_err(&client->dev, "cannot send start measurement command"); + pm_runtime_put_noidle(&client->dev); return ret; }