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SubjectRe: [PATCH] media: smiapp: Fix runtime PM imbalance on error
Hi Dinghao,

Thanks for the patch.

On Fri, May 22, 2020 at 05:03:13PM +0800, Dinghao Liu wrote:
> When v4l2_async_register_subdev_sensor_common() returns
> an error code, a pairing runtime PM usage counter
> decrement is needed to keep the counter balanced.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
> ---
> drivers/media/i2c/smiapp/smiapp-core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
> index 5e4f6a2ef78e..43ba63c48a87 100644
> --- a/drivers/media/i2c/smiapp/smiapp-core.c
> +++ b/drivers/media/i2c/smiapp/smiapp-core.c
> @@ -3103,6 +3103,7 @@ static int smiapp_probe(struct i2c_client *client)
> return 0;
>
> out_disable_runtime_pm:
> + pm_runtime_put_autosuspend(&client->dev);

Can you use pm_runtime_put_noidle(), as the device musn't be powered off
here yet?

> pm_runtime_disable(&client->dev);
>
> out_media_entity_cleanup:

--
Regards,

Sakari Ailus

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