* [PATCH] media: camss: ispif: Fix runtime PM imbalance on error
@ 2020-05-21 12:06 Dinghao Liu
0 siblings, 0 replies; only message in thread
From: Dinghao Liu @ 2020-05-21 12:06 UTC (permalink / raw)
To: dinghao.liu, kjlu
Cc: Todor Tomov, 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/camss/camss-ispif.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/qcom/camss/camss-ispif.c b/drivers/media/platform/qcom/camss/camss-ispif.c
index 1f33b4eb198c..5722e971b184 100644
--- a/drivers/media/platform/qcom/camss/camss-ispif.c
+++ b/drivers/media/platform/qcom/camss/camss-ispif.c
@@ -344,8 +344,10 @@ static int ispif_set_power(struct v4l2_subdev *sd, int on)
}
ret = pm_runtime_get_sync(dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_sync(dev);
goto exit;
+ }
ret = camss_enable_clocks(ispif->nclocks, ispif->clock, dev);
if (ret < 0) {
--
2.17.1
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2020-05-21 12:06 [PATCH] media: camss: ispif: Fix runtime PM imbalance on error Dinghao Liu
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