From e7c018a96355fa0d8ce2d4499d300584a92717c2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 23 Apr 2021 17:19:14 +0200 Subject: [PATCH] media: i2c: mt9m001: use pm_runtime_resume_and_get() 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 --- drivers/media/i2c/mt9m001.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/mt9m001.c b/drivers/media/i2c/mt9m001.c index 3b0ba8e..58c85a3b 100644 --- a/drivers/media/i2c/mt9m001.c +++ b/drivers/media/i2c/mt9m001.c @@ -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); -- 2.7.4