Re: [PATCH 72/78] media: s3c-camif: use pm_runtime_resume_and_get()

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Hi Mauro,

On 24.04.2021 08:45, Mauro Carvalho Chehab wrote:
Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
added pm_runtime_resume_and_get() in order to automatically handle
dev->power.usage_count decrement on errors.

Use the new API, in order to cleanup the error check logic.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
  drivers/media/platform/s3c-camif/camif-capture.c | 5 ++---
  drivers/media/platform/s3c-camif/camif-core.c    | 5 +++--
  2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
index 9ca49af29542..01fa08065ebc 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -547,16 +547,15 @@ static int s3c_camif_open(struct file *file)
  	if (ret < 0)
  		goto unlock;
- ret = pm_runtime_get_sync(camif->dev);
+	ret = pm_runtime_resume_and_get(camif->dev);
  	if (ret < 0)

-		goto err_pm;
+		goto unlock;

I think we don't need that label change, fh still needs to be released
in case of an error.

  	ret = sensor_set_power(camif, 1);
  	if (!ret)
  		goto unlock;
pm_runtime_put(camif->dev);
-err_pm:
  	v4l2_fh_release(file);
  unlock:
  	mutex_unlock(&camif->lock);

--
Regards,
Sylwester



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