linux-kernel - [PATCH 49/78] media: i2c: ov7740: use pm_runtime_resume_and

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Message-Id: <ec7514ee656a623807aab03b6b70f473c6c884c8.1619191723.git.mchehab+huawei@kernel.org>
Date:   Sat, 24 Apr 2021 08:44:59 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Wenyou Yang <wenyou.yang@...rochip.com>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH 49/78] media: i2c: ov7740: 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 <mchehab+huawei@...nel.org>
---
 drivers/media/i2c/ov7740.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/media/i2c/ov7740.c b/drivers/media/i2c/ov7740.c
index 47a9003d29d6..849a1ce61cf7 100644
--- a/drivers/media/i2c/ov7740.c
+++ b/drivers/media/i2c/ov7740.c
@@ -624,11 +624,9 @@ static int ov7740_set_stream(struct v4l2_subdev *sd, int enable)
 	}
 
 	if (enable) {
-		ret = pm_runtime_get_sync(&client->dev);
-		if (ret < 0) {
-			pm_runtime_put_noidle(&client->dev);
+		ret = pm_runtime_resume_and_get(&client->dev);
+		if (ret < 0)
 			goto err_unlock;
-		}
 
 		ret = ov7740_start_streaming(ov7740);
 		if (ret)
@@ -1165,7 +1163,7 @@ static int ov7740_remove(struct i2c_client *client)
 	v4l2_async_unregister_subdev(sd);
 	ov7740_free_controls(ov7740);
 
-	pm_runtime_get_sync(&client->dev);
+	pm_runtime_resume_and_get(&client->dev);
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
-- 
2.30.2