[PATCH 3/3] media: i2c: imx219: Balance runtime PM use-count in resume callback

[Lad Prabhakar]

The runtime PM use-count gets incremented in imx219_set_stream() call
when streaming is started this needs to be balanced by calling
pm_runtime_put() upon failure to start stream in resume callback.

Fixes: 1283b3b8f82b9 ("media: i2c: Add driver for Sony IMX219 sensor")
Reported-by: Pavel Machek <pa...@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad...@bp.renesas.com>
---
 drivers/media/i2c/imx219.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 87c021de1460..afffc85cd265 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -1184,6 +1184,7 @@ static int __maybe_unused imx219_resume(struct device 
*dev)
 {
        struct v4l2_subdev *sd = dev_get_drvdata(dev);
        struct imx219 *imx219 = to_imx219(sd);
+       struct i2c_client *client;
        int ret;
 
        mutex_lock(&imx219->mutex);
@@ -1197,7 +1198,9 @@ static int __maybe_unused imx219_resume(struct device 
*dev)
        return 0;
 
 error:
+       client = v4l2_get_subdevdata(&imx219->sd);
        imx219_stop_streaming(imx219);
+       pm_runtime_put(&client->dev);
        imx219->streaming = false;
        __v4l2_ctrl_grab(imx219->vflip, false);
        __v4l2_ctrl_grab(imx219->hflip, false);
-- 
2.17.1