[PATCH v2 4/6] iio: prox: pulsed-light-v2: Fix misbalance runtime pm in error path

[Jonathan Cameron <jic23@kernel.org>]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

There is one path in which we don't do a runtime pm put and so
leave the device enabled for ever more.

Reported-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fixes: 4ac4e086fd8c ("iio: pulsedlight-lidar-lite: add runtime PM")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Matt Ranostay <matt.ranostay@konsulko.com>
---
 drivers/iio/proximity/pulsedlight-lidar-lite-v2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
index 822a68ae5e03..ecaeb1e11007 100644
--- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
+++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
@@ -164,7 +164,7 @@ 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");
-		return ret;
+		goto err;
 	}
 
 	while (tries--) {
@@ -188,6 +188,7 @@ static int lidar_get_measurement(struct lidar_data *data, u16 *reg)
 		}
 		ret = -EIO;
 	}
+err:
 	pm_runtime_mark_last_busy(&client->dev);
 	pm_runtime_put_autosuspend(&client->dev);
 
-- 
2.31.1