This is a note to let you know that I've just added the patch titled
media: platform: s3c-camif: Fix runtime PM imbalance on error
to the 5.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-platform-s3c-camif-fix-runtime-pm-imbalance-on.patch
and it can be found in the queue-5.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3742176a377418d8f856b51a5587e284478f1e9d
Author: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Date: Thu May 21 15:29:33 2020 +0200
media: platform: s3c-camif: Fix runtime PM imbalance on error
[ Upstream commit dafa3605fe60d5a61239d670919b2a36e712481e ]
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.
Also, call pm_runtime_disable() when pm_runtime_get_sync() returns
an error code.
Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Reviewed-by: Sylwester Nawrocki <snawrocki@xxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c
index c6fbcd7036d6d..ee624804862e2 100644
--- a/drivers/media/platform/s3c-camif/camif-core.c
+++ b/drivers/media/platform/s3c-camif/camif-core.c
@@ -464,7 +464,7 @@ static int s3c_camif_probe(struct platform_device *pdev)
ret = camif_media_dev_init(camif);
if (ret < 0)
- goto err_alloc;
+ goto err_pm;
ret = camif_register_sensor(camif);
if (ret < 0)
@@ -498,10 +498,9 @@ static int s3c_camif_probe(struct platform_device *pdev)
media_device_unregister(&camif->media_dev);
media_device_cleanup(&camif->media_dev);
camif_unregister_media_entities(camif);
-err_alloc:
+err_pm:
pm_runtime_put(dev);
pm_runtime_disable(dev);
-err_pm:
camif_clk_put(camif);
err_clk:
s3c_camif_unregister_subdev(camif);
