* [PATCH] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error
@ 2021-04-07 4:59 Dinghao Liu
2021-04-07 7:40 ` Andy Shevchenko
2021-04-11 15:11 ` Jonathan Cameron
0 siblings, 2 replies; 3+ messages in thread
From: Dinghao Liu @ 2021-04-07 4:59 UTC (permalink / raw)
To: dinghao.liu, kjlu
Cc: Jonathan Cameron, Lars-Peter Clausen, Peter Meerwald-Stadler,
Alexandru Ardelean, Matt Ranostay, Andy Shevchenko, linux-iio,
linux-kernel
When lidar_write_control() fails, a pairing PM usage counter
decrement is needed to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
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 c685f10b5ae4..cc206bfa09c7 100644
--- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
+++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
@@ -160,6 +160,7 @@ 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;
}
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error
2021-04-07 4:59 [PATCH] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error Dinghao Liu
@ 2021-04-07 7:40 ` Andy Shevchenko
2021-04-11 15:11 ` Jonathan Cameron
1 sibling, 0 replies; 3+ messages in thread
From: Andy Shevchenko @ 2021-04-07 7:40 UTC (permalink / raw)
To: Dinghao Liu
Cc: Kangjie Lu, Jonathan Cameron, Lars-Peter Clausen,
Peter Meerwald-Stadler, Alexandru Ardelean, Matt Ranostay,
linux-iio, Linux Kernel Mailing List
On Wed, Apr 7, 2021 at 7:59 AM Dinghao Liu <dinghao.liu@zju.edu.cn> wrote:
>
> When lidar_write_control() fails, a pairing PM usage counter
> decrement is needed to keep the counter balanced.
FWIW,
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
> ---
> 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 c685f10b5ae4..cc206bfa09c7 100644
> --- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> +++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> @@ -160,6 +160,7 @@ 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;
> }
>
> --
> 2.17.1
>
--
With Best Regards,
Andy Shevchenko
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error
2021-04-07 4:59 [PATCH] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error Dinghao Liu
2021-04-07 7:40 ` Andy Shevchenko
@ 2021-04-11 15:11 ` Jonathan Cameron
1 sibling, 0 replies; 3+ messages in thread
From: Jonathan Cameron @ 2021-04-11 15:11 UTC (permalink / raw)
To: Dinghao Liu
Cc: kjlu, Lars-Peter Clausen, Peter Meerwald-Stadler,
Alexandru Ardelean, Matt Ranostay, Andy Shevchenko, linux-iio,
linux-kernel
On Wed, 7 Apr 2021 12:59:35 +0800
Dinghao Liu <dinghao.liu@zju.edu.cn> wrote:
> When lidar_write_control() fails, a pairing PM usage counter
> decrement is needed to keep the counter balanced.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Hi, patch content looks good but it needs a fixes tag so we know how far to backport it.
Please add for v2.
Thanks,
Jonathan
> ---
> 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 c685f10b5ae4..cc206bfa09c7 100644
> --- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> +++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
> @@ -160,6 +160,7 @@ 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;
> }
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-04-11 15:11 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-04-07 4:59 [PATCH] iio: proximity: pulsedlight: Fix rumtime PM imbalance on error Dinghao Liu
2021-04-07 7:40 ` Andy Shevchenko
2021-04-11 15:11 ` Jonathan Cameron
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