* [PATCH] media: venus: venc: Fix runtime PM imbalance in venc_open
@ 2020-05-24 4:31 Dinghao Liu
2020-06-23 9:47 ` Stanimir Varbanov
0 siblings, 1 reply; 2+ messages in thread
From: Dinghao Liu @ 2020-05-24 4:31 UTC (permalink / raw)
To: dinghao.liu, kjlu
Cc: Stanimir Varbanov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, linux-media, linux-arm-msm, linux-kernel
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
drivers/media/platform/qcom/venus/venc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 9981a2a27c90..eefcfbb8f211 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -1169,7 +1169,7 @@ static int venc_open(struct file *file)
ret = pm_runtime_get_sync(core->dev_enc);
if (ret < 0)
- goto err_free_inst;
+ goto err_put_sync;
ret = venc_ctrl_init(inst);
if (ret)
@@ -1214,7 +1214,6 @@ static int venc_open(struct file *file)
venc_ctrl_deinit(inst);
err_put_sync:
pm_runtime_put_sync(core->dev_enc);
-err_free_inst:
kfree(inst);
return ret;
}
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] media: venus: venc: Fix runtime PM imbalance in venc_open
2020-05-24 4:31 [PATCH] media: venus: venc: Fix runtime PM imbalance in venc_open Dinghao Liu
@ 2020-06-23 9:47 ` Stanimir Varbanov
0 siblings, 0 replies; 2+ messages in thread
From: Stanimir Varbanov @ 2020-06-23 9:47 UTC (permalink / raw)
To: Dinghao Liu, kjlu
Cc: Stanimir Varbanov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, linux-media, linux-arm-msm, linux-kernel
Hi Dinghao,
Thanks for the patch!
On 5/24/20 7:31 AM, Dinghao Liu wrote:
> pm_runtime_get_sync() increments the runtime PM usage counter even
> when it returns an error code. Thus a pairing decrement is needed on
> the error handling path to keep the counter balanced.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
> ---
> drivers/media/platform/qcom/venus/venc.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
Acked-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
>
> diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
> index 9981a2a27c90..eefcfbb8f211 100644
> --- a/drivers/media/platform/qcom/venus/venc.c
> +++ b/drivers/media/platform/qcom/venus/venc.c
> @@ -1169,7 +1169,7 @@ static int venc_open(struct file *file)
>
> ret = pm_runtime_get_sync(core->dev_enc);
> if (ret < 0)
> - goto err_free_inst;
> + goto err_put_sync;
>
> ret = venc_ctrl_init(inst);
> if (ret)
> @@ -1214,7 +1214,6 @@ static int venc_open(struct file *file)
> venc_ctrl_deinit(inst);
> err_put_sync:
> pm_runtime_put_sync(core->dev_enc);
> -err_free_inst:
> kfree(inst);
> return ret;
> }
>
--
regards,
Stan
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-06-23 9:47 ` Stanimir Varbanov
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