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media: i2c: mt9m001: use pm_runtime_resume_and_get()

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Commit dd8088d5a8 ("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@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2021-04-23 17:19:14 +02:00
parent 5f070f4df4
commit e7c018a963
1 changed files with 7 additions and 2 deletions
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9
drivers/media/i2c/mt9m001.c
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@ -217,9 +217,9 @@ static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable)
goto done;
if (enable) {
ret = pm_runtime_get_sync(&client->dev);
ret = pm_runtime_resume_and_get(&client->dev);
if (ret < 0)
goto put_unlock;
goto unlock;
ret = mt9m001_apply_selection(sd);
if (ret)
@ -247,6 +247,7 @@ done:
put_unlock:
pm_runtime_put(&client->dev);
unlock:
mutex_unlock(&mt9m001->mutex);
return ret;
@ -834,6 +835,10 @@ static int mt9m001_remove(struct i2c_client *client)
{
struct mt9m001 *mt9m001 = to_mt9m001(client);
/*
* As it increments RPM usage_count even on errors, we don't need to
* check the returned code here.
*/
pm_runtime_get_sync(&client->dev);
v4l2_async_unregister_subdev(&mt9m001->subdev);